Searched hist:100 (Results 1 - 25 of 38) sorted by relevance
/gem5/src/mem/cache/compressors/ | ||
H A D | base.cc | diff 13943:4046b0c547be Tue May 29 11:30:00 EDT 2018 Daniel R. Carvalho <odanrc@yahoo.com.br> mem-cache: Add compression stats Add compression statistics to the compressors. It tracks the number of blocks that can fit into a certain power of two size, and the number of decompressions. For example, if a block is compressed to 100 bits, it will belong to the 128-bits compression size. Although it could also fit bigger sizes, they are not taken into account for the stats (i.e., the 100-bit compression will fit only the 128-bits size, not 256 or higher). We save stats for compressions that fail (i.e., compressed size is bigger than original cache line size). Change-Id: Idab71a40a660e33259908ccd880e42a880b5ee06 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/11103 Tested-by: kokoro <noreply+kokoro@google.com> Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com> diff 13943:4046b0c547be Tue May 29 11:30:00 EDT 2018 Daniel R. Carvalho <odanrc@yahoo.com.br> mem-cache: Add compression stats Add compression statistics to the compressors. It tracks the number of blocks that can fit into a certain power of two size, and the number of decompressions. For example, if a block is compressed to 100 bits, it will belong to the 128-bits compression size. Although it could also fit bigger sizes, they are not taken into account for the stats (i.e., the 100-bit compression will fit only the 128-bits size, not 256 or higher). We save stats for compressions that fail (i.e., compressed size is bigger than original cache line size). Change-Id: Idab71a40a660e33259908ccd880e42a880b5ee06 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/11103 Tested-by: kokoro <noreply+kokoro@google.com> Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com> |
H A D | base.hh | diff 13943:4046b0c547be Tue May 29 11:30:00 EDT 2018 Daniel R. Carvalho <odanrc@yahoo.com.br> mem-cache: Add compression stats Add compression statistics to the compressors. It tracks the number of blocks that can fit into a certain power of two size, and the number of decompressions. For example, if a block is compressed to 100 bits, it will belong to the 128-bits compression size. Although it could also fit bigger sizes, they are not taken into account for the stats (i.e., the 100-bit compression will fit only the 128-bits size, not 256 or higher). We save stats for compressions that fail (i.e., compressed size is bigger than original cache line size). Change-Id: Idab71a40a660e33259908ccd880e42a880b5ee06 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/11103 Tested-by: kokoro <noreply+kokoro@google.com> Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com> diff 13943:4046b0c547be Tue May 29 11:30:00 EDT 2018 Daniel R. Carvalho <odanrc@yahoo.com.br> mem-cache: Add compression stats Add compression statistics to the compressors. It tracks the number of blocks that can fit into a certain power of two size, and the number of decompressions. For example, if a block is compressed to 100 bits, it will belong to the 128-bits compression size. Although it could also fit bigger sizes, they are not taken into account for the stats (i.e., the 100-bit compression will fit only the 128-bits size, not 256 or higher). We save stats for compressions that fail (i.e., compressed size is bigger than original cache line size). Change-Id: Idab71a40a660e33259908ccd880e42a880b5ee06 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/11103 Tested-by: kokoro <noreply+kokoro@google.com> Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com> |
/gem5/util/stats/ | ||
H A D | chart.py | 2006:3ca085495c69 Tue Nov 22 21:50:00 EST 2005 Nathan Binkert <binkertn@umich.edu> Major improvements in the graph output code. Mostly adding more options, making existing options more visible and dealing with holes in data better. util/stats/barchart.py: - move the options for BarChart to a base class ChartOptions so they can be more easily set and copied. - add an option to set the chart size (so you can adjust the aspect ratio) - don't do the add_subplot thing, use add_axes directly so we can affect the size of the figure itself to make room for the legend - make the initial array bottom floating point so we don't lose precision - add an option to set the limits on the y axis - use a figure legend instead of an axes legend so we can put the legend outside of the actual chart. Also add an option to set the fontsize of the legend. - initial hack at outputting csv files util/stats/db.py: don't print out an error when the run is missing from the database just return None, the error will be print elsewhere. util/stats/output.py: - make StatOutput derive from ChartOptions so that it's easier to set default chart options. - make the various output functions (graph, display, etc.) take the name of the data as a parameter instead of making it a parameter to __init__. This allows me to create the StatOutput object with generic parameters while still being able to specialize the name after the fact - add support for graph_group and graph_bars to be applied to multiple configuration groups. This results in a cross product of the groups to be generated and used. - flush the html file output as we go so that we can load the file while graphs are still being generated. - make the proxy a parameter to the graph function so the proper system's data can be graphed - for any groups or bars that are completely missing, remove them from the graph. This way, if we decide not to do a set of runs, there won't be holes in the data. - output eps and ps by default in addition to the png. util/stats/profile.py: - clean up the data structures that are used to store the function profile information and try our best to avoid keeping extra data around that isn't used. - make get() return None if a job is missing so we know it was missing rather than the all zeroes thing. - make the function profile categorization stuff total up to 100% - Fixup the x-axis and y-axis labels. - fix the dot file output stuff. util/stats/stats.py: support the new options stuff for StatOutput |
H A D | barchart.py | diff 2006:3ca085495c69 Tue Nov 22 21:50:00 EST 2005 Nathan Binkert <binkertn@umich.edu> Major improvements in the graph output code. Mostly adding more options, making existing options more visible and dealing with holes in data better. util/stats/barchart.py: - move the options for BarChart to a base class ChartOptions so they can be more easily set and copied. - add an option to set the chart size (so you can adjust the aspect ratio) - don't do the add_subplot thing, use add_axes directly so we can affect the size of the figure itself to make room for the legend - make the initial array bottom floating point so we don't lose precision - add an option to set the limits on the y axis - use a figure legend instead of an axes legend so we can put the legend outside of the actual chart. Also add an option to set the fontsize of the legend. - initial hack at outputting csv files util/stats/db.py: don't print out an error when the run is missing from the database just return None, the error will be print elsewhere. util/stats/output.py: - make StatOutput derive from ChartOptions so that it's easier to set default chart options. - make the various output functions (graph, display, etc.) take the name of the data as a parameter instead of making it a parameter to __init__. This allows me to create the StatOutput object with generic parameters while still being able to specialize the name after the fact - add support for graph_group and graph_bars to be applied to multiple configuration groups. This results in a cross product of the groups to be generated and used. - flush the html file output as we go so that we can load the file while graphs are still being generated. - make the proxy a parameter to the graph function so the proper system's data can be graphed - for any groups or bars that are completely missing, remove them from the graph. This way, if we decide not to do a set of runs, there won't be holes in the data. - output eps and ps by default in addition to the png. util/stats/profile.py: - clean up the data structures that are used to store the function profile information and try our best to avoid keeping extra data around that isn't used. - make get() return None if a job is missing so we know it was missing rather than the all zeroes thing. - make the function profile categorization stuff total up to 100% - Fixup the x-axis and y-axis labels. - fix the dot file output stuff. util/stats/stats.py: support the new options stuff for StatOutput |
H A D | output.py | diff 2006:3ca085495c69 Tue Nov 22 21:50:00 EST 2005 Nathan Binkert <binkertn@umich.edu> Major improvements in the graph output code. Mostly adding more options, making existing options more visible and dealing with holes in data better. util/stats/barchart.py: - move the options for BarChart to a base class ChartOptions so they can be more easily set and copied. - add an option to set the chart size (so you can adjust the aspect ratio) - don't do the add_subplot thing, use add_axes directly so we can affect the size of the figure itself to make room for the legend - make the initial array bottom floating point so we don't lose precision - add an option to set the limits on the y axis - use a figure legend instead of an axes legend so we can put the legend outside of the actual chart. Also add an option to set the fontsize of the legend. - initial hack at outputting csv files util/stats/db.py: don't print out an error when the run is missing from the database just return None, the error will be print elsewhere. util/stats/output.py: - make StatOutput derive from ChartOptions so that it's easier to set default chart options. - make the various output functions (graph, display, etc.) take the name of the data as a parameter instead of making it a parameter to __init__. This allows me to create the StatOutput object with generic parameters while still being able to specialize the name after the fact - add support for graph_group and graph_bars to be applied to multiple configuration groups. This results in a cross product of the groups to be generated and used. - flush the html file output as we go so that we can load the file while graphs are still being generated. - make the proxy a parameter to the graph function so the proper system's data can be graphed - for any groups or bars that are completely missing, remove them from the graph. This way, if we decide not to do a set of runs, there won't be holes in the data. - output eps and ps by default in addition to the png. util/stats/profile.py: - clean up the data structures that are used to store the function profile information and try our best to avoid keeping extra data around that isn't used. - make get() return None if a job is missing so we know it was missing rather than the all zeroes thing. - make the function profile categorization stuff total up to 100% - Fixup the x-axis and y-axis labels. - fix the dot file output stuff. util/stats/stats.py: support the new options stuff for StatOutput |
H A D | profile.py | diff 2006:3ca085495c69 Tue Nov 22 21:50:00 EST 2005 Nathan Binkert <binkertn@umich.edu> Major improvements in the graph output code. Mostly adding more options, making existing options more visible and dealing with holes in data better. util/stats/barchart.py: - move the options for BarChart to a base class ChartOptions so they can be more easily set and copied. - add an option to set the chart size (so you can adjust the aspect ratio) - don't do the add_subplot thing, use add_axes directly so we can affect the size of the figure itself to make room for the legend - make the initial array bottom floating point so we don't lose precision - add an option to set the limits on the y axis - use a figure legend instead of an axes legend so we can put the legend outside of the actual chart. Also add an option to set the fontsize of the legend. - initial hack at outputting csv files util/stats/db.py: don't print out an error when the run is missing from the database just return None, the error will be print elsewhere. util/stats/output.py: - make StatOutput derive from ChartOptions so that it's easier to set default chart options. - make the various output functions (graph, display, etc.) take the name of the data as a parameter instead of making it a parameter to __init__. This allows me to create the StatOutput object with generic parameters while still being able to specialize the name after the fact - add support for graph_group and graph_bars to be applied to multiple configuration groups. This results in a cross product of the groups to be generated and used. - flush the html file output as we go so that we can load the file while graphs are still being generated. - make the proxy a parameter to the graph function so the proper system's data can be graphed - for any groups or bars that are completely missing, remove them from the graph. This way, if we decide not to do a set of runs, there won't be holes in the data. - output eps and ps by default in addition to the png. util/stats/profile.py: - clean up the data structures that are used to store the function profile information and try our best to avoid keeping extra data around that isn't used. - make get() return None if a job is missing so we know it was missing rather than the all zeroes thing. - make the function profile categorization stuff total up to 100% - Fixup the x-axis and y-axis labels. - fix the dot file output stuff. util/stats/stats.py: support the new options stuff for StatOutput |
H A D | db.py | diff 2006:3ca085495c69 Tue Nov 22 21:50:00 EST 2005 Nathan Binkert <binkertn@umich.edu> Major improvements in the graph output code. Mostly adding more options, making existing options more visible and dealing with holes in data better. util/stats/barchart.py: - move the options for BarChart to a base class ChartOptions so they can be more easily set and copied. - add an option to set the chart size (so you can adjust the aspect ratio) - don't do the add_subplot thing, use add_axes directly so we can affect the size of the figure itself to make room for the legend - make the initial array bottom floating point so we don't lose precision - add an option to set the limits on the y axis - use a figure legend instead of an axes legend so we can put the legend outside of the actual chart. Also add an option to set the fontsize of the legend. - initial hack at outputting csv files util/stats/db.py: don't print out an error when the run is missing from the database just return None, the error will be print elsewhere. util/stats/output.py: - make StatOutput derive from ChartOptions so that it's easier to set default chart options. - make the various output functions (graph, display, etc.) take the name of the data as a parameter instead of making it a parameter to __init__. This allows me to create the StatOutput object with generic parameters while still being able to specialize the name after the fact - add support for graph_group and graph_bars to be applied to multiple configuration groups. This results in a cross product of the groups to be generated and used. - flush the html file output as we go so that we can load the file while graphs are still being generated. - make the proxy a parameter to the graph function so the proper system's data can be graphed - for any groups or bars that are completely missing, remove them from the graph. This way, if we decide not to do a set of runs, there won't be holes in the data. - output eps and ps by default in addition to the png. util/stats/profile.py: - clean up the data structures that are used to store the function profile information and try our best to avoid keeping extra data around that isn't used. - make get() return None if a job is missing so we know it was missing rather than the all zeroes thing. - make the function profile categorization stuff total up to 100% - Fixup the x-axis and y-axis labels. - fix the dot file output stuff. util/stats/stats.py: support the new options stuff for StatOutput |
H A D | stats.py | diff 2006:3ca085495c69 Tue Nov 22 21:50:00 EST 2005 Nathan Binkert <binkertn@umich.edu> Major improvements in the graph output code. Mostly adding more options, making existing options more visible and dealing with holes in data better. util/stats/barchart.py: - move the options for BarChart to a base class ChartOptions so they can be more easily set and copied. - add an option to set the chart size (so you can adjust the aspect ratio) - don't do the add_subplot thing, use add_axes directly so we can affect the size of the figure itself to make room for the legend - make the initial array bottom floating point so we don't lose precision - add an option to set the limits on the y axis - use a figure legend instead of an axes legend so we can put the legend outside of the actual chart. Also add an option to set the fontsize of the legend. - initial hack at outputting csv files util/stats/db.py: don't print out an error when the run is missing from the database just return None, the error will be print elsewhere. util/stats/output.py: - make StatOutput derive from ChartOptions so that it's easier to set default chart options. - make the various output functions (graph, display, etc.) take the name of the data as a parameter instead of making it a parameter to __init__. This allows me to create the StatOutput object with generic parameters while still being able to specialize the name after the fact - add support for graph_group and graph_bars to be applied to multiple configuration groups. This results in a cross product of the groups to be generated and used. - flush the html file output as we go so that we can load the file while graphs are still being generated. - make the proxy a parameter to the graph function so the proper system's data can be graphed - for any groups or bars that are completely missing, remove them from the graph. This way, if we decide not to do a set of runs, there won't be holes in the data. - output eps and ps by default in addition to the png. util/stats/profile.py: - clean up the data structures that are used to store the function profile information and try our best to avoid keeping extra data around that isn't used. - make get() return None if a job is missing so we know it was missing rather than the all zeroes thing. - make the function profile categorization stuff total up to 100% - Fixup the x-axis and y-axis labels. - fix the dot file output stuff. util/stats/stats.py: support the new options stuff for StatOutput |
/gem5/src/mem/cache/ | ||
H A D | queue_entry.hh | diff 13859:4156ac0c7257 Wed Jan 30 08:46:00 EST 2019 Daniel R. Carvalho <odanrc@yahoo.com.br> mem-cache: Move Target to QueueEntry WriteQueueEntry's target has 100% functionality overlap with MSHR's, therefore make it base to MSHR::Target. Change-Id: I48614e78179d708bd91bbe75a752e5a05146e8eb Signed-off-by: Daniel R. Carvalho <odanrc@yahoo.com.br> Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/17534 Tested-by: kokoro <noreply+kokoro@google.com> Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com> |
H A D | write_queue_entry.hh | diff 13859:4156ac0c7257 Wed Jan 30 08:46:00 EST 2019 Daniel R. Carvalho <odanrc@yahoo.com.br> mem-cache: Move Target to QueueEntry WriteQueueEntry's target has 100% functionality overlap with MSHR's, therefore make it base to MSHR::Target. Change-Id: I48614e78179d708bd91bbe75a752e5a05146e8eb Signed-off-by: Daniel R. Carvalho <odanrc@yahoo.com.br> Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/17534 Tested-by: kokoro <noreply+kokoro@google.com> Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com> |
H A D | noncoherent_cache.cc | diff 13859:4156ac0c7257 Wed Jan 30 08:46:00 EST 2019 Daniel R. Carvalho <odanrc@yahoo.com.br> mem-cache: Move Target to QueueEntry WriteQueueEntry's target has 100% functionality overlap with MSHR's, therefore make it base to MSHR::Target. Change-Id: I48614e78179d708bd91bbe75a752e5a05146e8eb Signed-off-by: Daniel R. Carvalho <odanrc@yahoo.com.br> Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/17534 Tested-by: kokoro <noreply+kokoro@google.com> Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com> |
H A D | mshr.hh | diff 13859:4156ac0c7257 Wed Jan 30 08:46:00 EST 2019 Daniel R. Carvalho <odanrc@yahoo.com.br> mem-cache: Move Target to QueueEntry WriteQueueEntry's target has 100% functionality overlap with MSHR's, therefore make it base to MSHR::Target. Change-Id: I48614e78179d708bd91bbe75a752e5a05146e8eb Signed-off-by: Daniel R. Carvalho <odanrc@yahoo.com.br> Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/17534 Tested-by: kokoro <noreply+kokoro@google.com> Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com> |
/gem5/src/mem/cache/replacement_policies/ | ||
H A D | brrip_rp.hh | diff 13849:858526a875ab Tue Apr 09 10:26:00 EDT 2019 Anis Peysieux <anis.peysieux@inria.fr> mem-cache: Fix RRPV for RRIP The RRPV values for RRIP and NRU replacment policies. Long re-rereference interval was used instead of distant re-rereference interval and vice-versa. The btp value permit to choose beetwen distant and long insertion ratio. A btp value of 0 force the policy to always insert at a distant re-reference interval and a btp value of 100 force the policy to always insert at a long (intermediate) re-rereference interval. Change-Id: I516098f73942b769dcc31fe0edfe07c3e9c3effd Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/17851 Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br> Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Maintainer: Jason Lowe-Power <jason@lowepower.com> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com> |
H A D | ReplacementPolicies.py | diff 13849:858526a875ab Tue Apr 09 10:26:00 EDT 2019 Anis Peysieux <anis.peysieux@inria.fr> mem-cache: Fix RRPV for RRIP The RRPV values for RRIP and NRU replacment policies. Long re-rereference interval was used instead of distant re-rereference interval and vice-versa. The btp value permit to choose beetwen distant and long insertion ratio. A btp value of 0 force the policy to always insert at a distant re-reference interval and a btp value of 100 force the policy to always insert at a long (intermediate) re-rereference interval. Change-Id: I516098f73942b769dcc31fe0edfe07c3e9c3effd Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/17851 Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br> Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Maintainer: Jason Lowe-Power <jason@lowepower.com> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com> |
/gem5/src/mem/cache/tags/ | ||
H A D | compressed_tags.hh | diff 13946:8e96e9be7f2c Tue Jun 19 11:31:00 EDT 2018 Daniel R. Carvalho <odanrc@yahoo.com.br> mem-cache: Add co-allocation function to compressed tags Implement a co-allocation function in compressed tags, so that compressed blocks can be co-allocated in a superblock. Co-allocation is possible when compression ratio (CR) blocks that share a superblock tag can be compressed to up to (100/CR)% of their size. Change-Id: I937cc1fcbb488e70309cb5478c12db65f1b4b23f Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/11411 Tested-by: kokoro <noreply+kokoro@google.com> Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com> |
H A D | compressed_tags.cc | diff 13946:8e96e9be7f2c Tue Jun 19 11:31:00 EDT 2018 Daniel R. Carvalho <odanrc@yahoo.com.br> mem-cache: Add co-allocation function to compressed tags Implement a co-allocation function in compressed tags, so that compressed blocks can be co-allocated in a superblock. Co-allocation is possible when compression ratio (CR) blocks that share a superblock tag can be compressed to up to (100/CR)% of their size. Change-Id: I937cc1fcbb488e70309cb5478c12db65f1b4b23f Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/11411 Tested-by: kokoro <noreply+kokoro@google.com> Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com> |
/gem5/src/dev/arm/ | ||
H A D | rv_ctrl.cc | diff 8273:d3992e7ebc59 Wed May 04 21:38:00 EDT 2011 Chris Emmons <chris.emmons@arm.com> RealView: Fix the 24 and 100MHz clocks which were providing incorrect values. diff 8060:a9e16f89f11e Wed Feb 23 16:10:00 EST 2011 Ali Saidi <Ali.Saidi@ARM.com> ARM: Add support for read of 100MHz clock in system controller. |
/gem5/configs/dram/ | ||
H A D | sweep.py | diff 10392:0100f00a229e Sat Sep 20 17:17:00 EDT 2014 Wendy Elsasser <wendy.elsasser@arm.com> cpu: Update DRAM traffic gen Add new DRAM_ROTATE mode to traffic generator. This mode will generate DRAM traffic that rotates across banks per rank, command types, and ranks per channel The looping order is illustrated below: for (ranks per channel) for (command types) for (banks per rank) // Generate DRAM Command Series This patch also adds the read percentage as an input argument to the DRAM sweep script. If the simulated read percentage is 0 or 100, the middle for loop does not generate additional commands. This loop is used only when the read percentage is set to 50, in which case the middle loop will toggle between read and write commands. Modified sweep.py script, which generates DRAM traffic. Added input arguments and support for new DRAM_ROTATE mode. The script now has input arguments for: 1) Read percentage 2) Number of ranks 3) Address mapping 4) Traffic generator mode (DRAM or DRAM_ROTATE) The default values are: 100% reads, 1 rank, RoRaBaCoCh address mapping, and DRAM traffic gen mode For the DRAM traffic mode, added multi-rank support. diff 10392:0100f00a229e Sat Sep 20 17:17:00 EDT 2014 Wendy Elsasser <wendy.elsasser@arm.com> cpu: Update DRAM traffic gen Add new DRAM_ROTATE mode to traffic generator. This mode will generate DRAM traffic that rotates across banks per rank, command types, and ranks per channel The looping order is illustrated below: for (ranks per channel) for (command types) for (banks per rank) // Generate DRAM Command Series This patch also adds the read percentage as an input argument to the DRAM sweep script. If the simulated read percentage is 0 or 100, the middle for loop does not generate additional commands. This loop is used only when the read percentage is set to 50, in which case the middle loop will toggle between read and write commands. Modified sweep.py script, which generates DRAM traffic. Added input arguments and support for new DRAM_ROTATE mode. The script now has input arguments for: 1) Read percentage 2) Number of ranks 3) Address mapping 4) Traffic generator mode (DRAM or DRAM_ROTATE) The default values are: 100% reads, 1 rank, RoRaBaCoCh address mapping, and DRAM traffic gen mode For the DRAM traffic mode, added multi-rank support. |
/gem5/src/mem/ | ||
H A D | SimpleMemory.py | diff 9823:c8dd3368c6ba Mon Aug 19 03:52:00 EDT 2013 Andreas Hansson <andreas.hansson@arm.com> mem: Add an internal packet queue in SimpleMemory This patch adds a packet queue in SimpleMemory to avoid using the packet queue in the port (and thus have no involvement in the flow control). The port queue was bound to 100 packets, and as the SimpleMemory is modelling both a controller and an actual RAM, it potentially has a large number of packets in flight. There is currently no limit on the number of packets in the memory controller, but this could easily be added in a follow-on patch. As a result of the added internal storage, the functional access and draining is updated. Some minor cleaning up and renaming has also been done. The memtest regression changes as a result of this patch and the stats will be updated. |
H A D | packet_queue.cc | diff 11207:7b7e352f8d7f Mon Jul 20 10:15:00 EDT 2015 Brad Beckmann <Brad.Beckmann@amd.com> mem: add boolean to disable PacketQueue's size sanity check the sanity check, while generally useful for exposing memory system bugs, may be spurious with respect to GPU workloads, which may generate many more requests than typical CPU workloads. the large number of requests generated by the GPU may cause the req/resp queues to back up, thus queueing more than 100 packets. diff 9390:5490105626dc Mon Jan 07 13:05:00 EST 2013 Andreas Hansson <andreas.hansson@arm.com> mem: Add sanity check to packet queue size This patch adds a basic check to ensure that the packet queue does not grow absurdly large. The queue should only be used to store packets that were delayed due to blocking from the neighbouring port, and not for actual storage. Thus, a limit of 100 has been chosen for now (which is already quite substantial). |
H A D | simple_mem.hh | diff 9823:c8dd3368c6ba Mon Aug 19 03:52:00 EDT 2013 Andreas Hansson <andreas.hansson@arm.com> mem: Add an internal packet queue in SimpleMemory This patch adds a packet queue in SimpleMemory to avoid using the packet queue in the port (and thus have no involvement in the flow control). The port queue was bound to 100 packets, and as the SimpleMemory is modelling both a controller and an actual RAM, it potentially has a large number of packets in flight. There is currently no limit on the number of packets in the memory controller, but this could easily be added in a follow-on patch. As a result of the added internal storage, the functional access and draining is updated. Some minor cleaning up and renaming has also been done. The memtest regression changes as a result of this patch and the stats will be updated. |
H A D | packet_queue.hh | diff 11207:7b7e352f8d7f Mon Jul 20 10:15:00 EDT 2015 Brad Beckmann <Brad.Beckmann@amd.com> mem: add boolean to disable PacketQueue's size sanity check the sanity check, while generally useful for exposing memory system bugs, may be spurious with respect to GPU workloads, which may generate many more requests than typical CPU workloads. the large number of requests generated by the GPU may cause the req/resp queues to back up, thus queueing more than 100 packets. |
H A D | simple_mem.cc | diff 9823:c8dd3368c6ba Mon Aug 19 03:52:00 EDT 2013 Andreas Hansson <andreas.hansson@arm.com> mem: Add an internal packet queue in SimpleMemory This patch adds a packet queue in SimpleMemory to avoid using the packet queue in the port (and thus have no involvement in the flow control). The port queue was bound to 100 packets, and as the SimpleMemory is modelling both a controller and an actual RAM, it potentially has a large number of packets in flight. There is currently no limit on the number of packets in the memory controller, but this could easily be added in a follow-on patch. As a result of the added internal storage, the functional access and draining is updated. Some minor cleaning up and renaming has also been done. The memtest regression changes as a result of this patch and the stats will be updated. |
/gem5/src/cpu/testers/traffic_gen/ | ||
H A D | traffic_gen.cc | diff 10392:0100f00a229e Sat Sep 20 17:17:00 EDT 2014 Wendy Elsasser <wendy.elsasser@arm.com> cpu: Update DRAM traffic gen Add new DRAM_ROTATE mode to traffic generator. This mode will generate DRAM traffic that rotates across banks per rank, command types, and ranks per channel The looping order is illustrated below: for (ranks per channel) for (command types) for (banks per rank) // Generate DRAM Command Series This patch also adds the read percentage as an input argument to the DRAM sweep script. If the simulated read percentage is 0 or 100, the middle for loop does not generate additional commands. This loop is used only when the read percentage is set to 50, in which case the middle loop will toggle between read and write commands. Modified sweep.py script, which generates DRAM traffic. Added input arguments and support for new DRAM_ROTATE mode. The script now has input arguments for: 1) Read percentage 2) Number of ranks 3) Address mapping 4) Traffic generator mode (DRAM or DRAM_ROTATE) The default values are: 100% reads, 1 rank, RoRaBaCoCh address mapping, and DRAM traffic gen mode For the DRAM traffic mode, added multi-rank support. diff 10392:0100f00a229e Sat Sep 20 17:17:00 EDT 2014 Wendy Elsasser <wendy.elsasser@arm.com> cpu: Update DRAM traffic gen Add new DRAM_ROTATE mode to traffic generator. This mode will generate DRAM traffic that rotates across banks per rank, command types, and ranks per channel The looping order is illustrated below: for (ranks per channel) for (command types) for (banks per rank) // Generate DRAM Command Series This patch also adds the read percentage as an input argument to the DRAM sweep script. If the simulated read percentage is 0 or 100, the middle for loop does not generate additional commands. This loop is used only when the read percentage is set to 50, in which case the middle loop will toggle between read and write commands. Modified sweep.py script, which generates DRAM traffic. Added input arguments and support for new DRAM_ROTATE mode. The script now has input arguments for: 1) Read percentage 2) Number of ranks 3) Address mapping 4) Traffic generator mode (DRAM or DRAM_ROTATE) The default values are: 100% reads, 1 rank, RoRaBaCoCh address mapping, and DRAM traffic gen mode For the DRAM traffic mode, added multi-rank support. diff 9391:8f24dcb13b85 Mon Jan 07 13:05:00 EST 2013 Andreas Hansson <andreas.hansson@arm.com> cpu: Fix the traffic gen read percentage This patch fixes the computation that determines whether to perform a read or a write such that the two corner cases (0 and 100) are both more efficient and handled correctly. |
/gem5/src/arch/sparc/ | ||
H A D | faults.cc | diff 11850:36119fa7874d Fri Feb 17 00:01:00 EST 2017 Brandon Potter <brandon.potter@amd.com> sparc: fix bugs caused by cd7f3a1dbf55 Turns out that SPARC SE mode relied on M5_pid being "0" in all cases. The entries in the SPARC TLBs are accessed with M5_pid as their context. This is buggy in the sense that it will never work with more than one process or any initialization that doesn't have the M5_pid value passed in as "0". cd7f3a1dbf55 broke the SPARC build because it deletes M5_pid and uses a _pid with a default of "100" instead. This caused the SPARC TLB to never return any valid lookups for any request; the program never moved past the first instruction with SPARC SE in the regression tester. The solution proposed in this changeset is to initialize the address space identification register with the PID value that is passed into the process class as a parameter from Python. This should return the correct responses from the TLB since the insertions and lookups into the page table will be using the same PID. Furthermore, there are corner cases in the code which elevate privileges and revert to using context "0" as the context in the TLB. I believe that these are related to kernel level traps and hypervisor privilege escalations, but I'm not completely sure. I've tried to address the corner cases properly, but it would be beneficial to have someone who is familiar with the SPARC architecture to take a look at this fix. |
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