Nikos Nikoleris has uploaded a new patch set (#2). (
https://gem5-review.googlesource.com/c/public/gem5/+/12907 )
Change subject: mem: Add write coalescing and write-no-allocate to the
caches
......................................................................
mem: Add write coalescing and write-no-allocate to the caches
Enable the cache to detect contiguous writes and hold on to the MSHR
long enough to allow the entire line to be written. If the whole line
is written, the MSHR will be sent out as an invalidation requests, as
it is part of a whole-line write, i.e. no-fetch-on-write.
The cache is also able to switch to a write-no-allocate policy on the
actual completion of the writes, and instead use the tempBlock and
turn the write operation into a writeback.
These policies are all well-known, and described in works such as
Jouppi, Cache Write Policies and Performance, vol 21, no 2, ACM, 1993.
Change-Id: I19792f2970b3c6798c9b2b493acdd156897284ae
---
M src/mem/cache/Cache.py
M src/mem/cache/base.cc
M src/mem/cache/base.hh
M src/mem/cache/cache.cc
4 files changed, 252 insertions(+), 6 deletions(-)
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Gerrit-Project: public/gem5
Gerrit-Branch: master
Gerrit-Change-Id: I19792f2970b3c6798c9b2b493acdd156897284ae
Gerrit-Change-Number: 12907
Gerrit-PatchSet: 2
Gerrit-Owner: Nikos Nikoleris <[email protected]>
Gerrit-Reviewer: Nikos Nikoleris <[email protected]>
Gerrit-CC: Daniel Carvalho <[email protected]>
Gerrit-MessageType: newpatchset
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