cache/compressors/bdi.cc

121     const uint64_t* data, const std::size_t blk_size)
123       _data(data, data + blk_size/CHAR_BIT)
212 BDI::BDICompDataBaseDelta<TB, TD>::compress(const uint64_t* data,
215     // Parse through data in a sizeof(TB) granularity
221         std::memcpy(&curValue, ((uint8_t*)data) + byte_start,
232             // that is the case, add delta to compressed data and keep parsing
233             // the input data
243         // If we cannot find a base that can accommodate this new line's data,
304 BDI::isZeroPackable(const uint64_t* data) const
306     return std::all_of(data, data + qwordsPerCacheLine,
311 BDI::isSameValuePackable(const uint64_t* data) const
314     const uint64_t rep_value = data[0];
315     return std::all_of(data, data + qwordsPerCacheLine,
322 BDI::tryCompress(const uint64_t* data, const uint8_t encoding) const
329     if (temp_data->compress(data, blkSize)) {
338                 uint64_t* data)
342         data[i] = static_cast<const BDICompData*>(comp_data)->access(i);
346 BDI::compress(const uint64_t* data, Cycles& comp_lat, Cycles& decomp_lat)
351     if (isZeroPackable(data)) {
357     } else if (isSameValuePackable(data)) {
358         bdi_data = std::unique_ptr<BDICompData>(new BDICompDataRep(data[0]));
363         // Initialize compressed data as an uncompressed instance
365                   new BDICompDataUncompressed(data, blkSize));
393                     temp_bdi_data = tryCompress<uint64_t, int32_t>(data,
396                     temp_bdi_data = tryCompress<uint64_t, int16_t>(data,
399                     temp_bdi_data = tryCompress<uint64_t, int8_t>(data,
402                     temp_bdi_data = tryCompress<uint32_t, int16_t>(data,
405                     temp_bdi_data = tryCompress<uint32_t, int8_t>(data,
408                     temp_bdi_data = tryCompress<uint16_t, int8_t>(data,
435         // In the worst case scenario the data is left uncompressed, so
465         .desc("Number of data entries that were compressed to this encoding.")
470         encodingStats.subdesc(i, "Number of data entries that match " \