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(parent: df06d5d) | patch
MemMMap/SimState: speed up SimState.get_mem() for large memories
authorJacob Lifshay <programmerjake@gmail.com>
Sun, 3 Dec 2023 07:57:21 +0000 (23:57 -0800)
committerLuke Kenneth Casson Leighton <lkcl@lkcl.net>
Fri, 22 Dec 2023 19:26:22 +0000 (19:26 +0000)
commit384de2c98e1b3f6fa75a27cfbd50f8ca876e1df1
tree9c0682811c4cf6d0ebdc5d2289206357d1d4b21etree
parentdf06d5d87f9fbb2f12ebb23976930e2fc73df383commit | diff
MemMMap/SimState: speed up SimState.get_mem() for large memories

make MemMMap use struct.Struct.unpack_from to read a whole page at
once, rather than doing a sequence of loads. This makes an ELF
binary statically-linked to glibc able to run many instructions per
second rather than one every tens of seconds or so.
src/openpower/decoder/isa/mem.py diff | blob | history
src/openpower/decoder/isa/test_mem.py diff | blob | history
src/openpower/test/state.py diff | blob | history