CommMonitor.py (10615:cd8aae15f89a) CommMonitor.py (10995:a114e2712642)
1# Copyright (c) 2012 ARM Limited
2# All rights reserved.
3#
4# The license below extends only to copyright in the software and shall
5# not be construed as granting a license to any other intellectual
6# property including but not limited to intellectual property relating
7# to a hardware implementation of the functionality of the software
8# licensed hereunder. You may use the software subject to the license
9# terms below provided that you ensure that this notice is replicated
10# unmodified and in its entirety in all distributions of the software,
11# modified or unmodified, in source code or in binary form.
12#
13# Redistribution and use in source and binary forms, with or without
14# modification, are permitted provided that the following conditions are
15# met: redistributions of source code must retain the above copyright
16# notice, this list of conditions and the following disclaimer;
17# redistributions in binary form must reproduce the above copyright
18# notice, this list of conditions and the following disclaimer in the
19# documentation and/or other materials provided with the distribution;
20# neither the name of the copyright holders nor the names of its
21# contributors may be used to endorse or promote products derived from
22# this software without specific prior written permission.
23#
24# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
25# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
26# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
27# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
28# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
29# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
30# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
31# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
32# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
33# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
34# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
35#
36# Authors: Thomas Grass
37# Andreas Hansson
38
39from m5.params import *
40from m5.proxy import *
41from MemObject import MemObject
42from System import System
43
44# The communication monitor will most typically be used in combination
45# with periodic dumping and resetting of stats using schedStatEvent
46class CommMonitor(MemObject):
47 type = 'CommMonitor'
48 cxx_header = "mem/comm_monitor.hh"
49
50 system = Param.System(Parent.any, "System that the monitor belongs to.")
51
52 # one port in each direction
53 master = MasterPort("Master port")
54 slave = SlavePort("Slave port")
55
56 # Boolean to enable or disable the trace. Writes to an a file named based on
57 # SimObject hierarchy.
58 trace_enable = Param.Bool(False, "Enable trace capture")
59
60 # Boolean to compress the trace or not.
61 trace_compress = Param.Bool(True, "Enable trace compression")
62
63 # packet trace output file, disabled by default
64 trace_file = Param.String("", "Packet trace output file")
65
66 # control the sample period window length of this monitor
67 sample_period = Param.Clock("1ms", "Sample period for histograms")
68
69 # for each histogram, set the number of bins and enable the user
70 # to disable the measurement, reads and writes use the same
71 # parameters
72
73 # histogram of burst length of packets (not using sample period)
74 burst_length_bins = Param.Unsigned('20', "# bins in burst length " \
75 "histograms")
76 disable_burst_length_hists = Param.Bool(False, "Disable burst length " \
77 "histograms")
78
79 # bandwidth per sample period
80 bandwidth_bins = Param.Unsigned('20', "# bins in bandwidth histograms")
81 disable_bandwidth_hists = Param.Bool(False, "Disable bandwidth histograms")
82
83 # latency from request to response (not using sample period)
84 latency_bins = Param.Unsigned('20', "# bins in latency histograms")
85 disable_latency_hists = Param.Bool(False, "Disable latency histograms")
86
87 # inter transaction time (ITT) distributions in uniformly sized
88 # bins up to the maximum, independently for read-to-read,
89 # write-to-write and the combined request-to-request that does not
90 # separate read and write requests
91 itt_bins = Param.Unsigned('20', "# bins in ITT distributions")
92 itt_max_bin = Param.Latency('100ns', "Max bin of ITT distributions")
93 disable_itt_dists = Param.Bool(False, "Disable ITT distributions")
94
95 # outstanding requests (that did not yet get a response) per
96 # sample period
97 outstanding_bins = Param.Unsigned('20', "# bins in outstanding " \
98 "requests histograms")
99 disable_outstanding_hists = Param.Bool(False, "Disable outstanding " \
100 "requests histograms")
101
102 # transactions (requests) observed per sample period
103 transaction_bins = Param.Unsigned('20', "# bins in transaction " \
104 "count histograms")
105 disable_transaction_hists = Param.Bool(False, "Disable transaction count " \
106 "histograms")
107
108 # address distributions (heatmaps) with associated address masks
109 # to selectively only look at certain bits of the address
110 read_addr_mask = Param.Addr(MaxAddr, "Address mask for read address")
111 write_addr_mask = Param.Addr(MaxAddr, "Address mask for write address")
112 disable_addr_dists = Param.Bool(True, "Disable address distributions")
1# Copyright (c) 2012 ARM Limited
2# All rights reserved.
3#
4# The license below extends only to copyright in the software and shall
5# not be construed as granting a license to any other intellectual
6# property including but not limited to intellectual property relating
7# to a hardware implementation of the functionality of the software
8# licensed hereunder. You may use the software subject to the license
9# terms below provided that you ensure that this notice is replicated
10# unmodified and in its entirety in all distributions of the software,
11# modified or unmodified, in source code or in binary form.
12#
13# Redistribution and use in source and binary forms, with or without
14# modification, are permitted provided that the following conditions are
15# met: redistributions of source code must retain the above copyright
16# notice, this list of conditions and the following disclaimer;
17# redistributions in binary form must reproduce the above copyright
18# notice, this list of conditions and the following disclaimer in the
19# documentation and/or other materials provided with the distribution;
20# neither the name of the copyright holders nor the names of its
21# contributors may be used to endorse or promote products derived from
22# this software without specific prior written permission.
23#
24# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
25# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
26# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
27# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
28# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
29# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
30# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
31# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
32# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
33# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
34# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
35#
36# Authors: Thomas Grass
37# Andreas Hansson
38
39from m5.params import *
40from m5.proxy import *
41from MemObject import MemObject
42from System import System
43
44# The communication monitor will most typically be used in combination
45# with periodic dumping and resetting of stats using schedStatEvent
46class CommMonitor(MemObject):
47 type = 'CommMonitor'
48 cxx_header = "mem/comm_monitor.hh"
49
50 system = Param.System(Parent.any, "System that the monitor belongs to.")
51
52 # one port in each direction
53 master = MasterPort("Master port")
54 slave = SlavePort("Slave port")
55
56 # Boolean to enable or disable the trace. Writes to an a file named based on
57 # SimObject hierarchy.
58 trace_enable = Param.Bool(False, "Enable trace capture")
59
60 # Boolean to compress the trace or not.
61 trace_compress = Param.Bool(True, "Enable trace compression")
62
63 # packet trace output file, disabled by default
64 trace_file = Param.String("", "Packet trace output file")
65
66 # control the sample period window length of this monitor
67 sample_period = Param.Clock("1ms", "Sample period for histograms")
68
69 # for each histogram, set the number of bins and enable the user
70 # to disable the measurement, reads and writes use the same
71 # parameters
72
73 # histogram of burst length of packets (not using sample period)
74 burst_length_bins = Param.Unsigned('20', "# bins in burst length " \
75 "histograms")
76 disable_burst_length_hists = Param.Bool(False, "Disable burst length " \
77 "histograms")
78
79 # bandwidth per sample period
80 bandwidth_bins = Param.Unsigned('20', "# bins in bandwidth histograms")
81 disable_bandwidth_hists = Param.Bool(False, "Disable bandwidth histograms")
82
83 # latency from request to response (not using sample period)
84 latency_bins = Param.Unsigned('20', "# bins in latency histograms")
85 disable_latency_hists = Param.Bool(False, "Disable latency histograms")
86
87 # inter transaction time (ITT) distributions in uniformly sized
88 # bins up to the maximum, independently for read-to-read,
89 # write-to-write and the combined request-to-request that does not
90 # separate read and write requests
91 itt_bins = Param.Unsigned('20', "# bins in ITT distributions")
92 itt_max_bin = Param.Latency('100ns', "Max bin of ITT distributions")
93 disable_itt_dists = Param.Bool(False, "Disable ITT distributions")
94
95 # outstanding requests (that did not yet get a response) per
96 # sample period
97 outstanding_bins = Param.Unsigned('20', "# bins in outstanding " \
98 "requests histograms")
99 disable_outstanding_hists = Param.Bool(False, "Disable outstanding " \
100 "requests histograms")
101
102 # transactions (requests) observed per sample period
103 transaction_bins = Param.Unsigned('20', "# bins in transaction " \
104 "count histograms")
105 disable_transaction_hists = Param.Bool(False, "Disable transaction count " \
106 "histograms")
107
108 # address distributions (heatmaps) with associated address masks
109 # to selectively only look at certain bits of the address
110 read_addr_mask = Param.Addr(MaxAddr, "Address mask for read address")
111 write_addr_mask = Param.Addr(MaxAddr, "Address mask for write address")
112 disable_addr_dists = Param.Bool(True, "Disable address distributions")
113
114 # optional stack distance calculator
115 stack_dist_calc = Param.StackDistCalc(NULL, "Stack distance calculator")