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revert L3 buffer size change for DRAM BW test #711

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Merged
adgubrud merged 4 commits into from
Aug 7, 2026
Merged

revert L3 buffer size change for DRAM BW test #711

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71f220f
revert L3 buffer size change for DRAM BW test
romirdes Aug 6, 2026
ef55747
dummy commit to trigger build & test
romirdes Aug 6, 2026
fed1893
Update internal/script/scripts.go
adgubrud Aug 6, 2026
1827c76
Merge branch 'intel:main' into dram_bw_fix
romirdes Aug 7, 2026
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9 changes: 3 additions & 6 deletions internal/script/scripts.go
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Expand Up @@ -164,13 +164,10 @@ func GetParameterizedScriptByName(name string, params map[string]string) ScriptD

// mlc benchmark script constants (buffer setup snippets passed into mlcBenchmarkScript)
const (
// for measuring memory bandwidth and latency (2x of per-core L3 share, minimum 100 MB)
// for measuring memory bandwidth and latency (2x of L3 cache size)
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mlcBufferSetupMemory = `L3_KB=$(cache_size_kb L3)
CORES_PER_SOCKET=$(lscpu | grep -E 'Core\(s\) per socket:' | head -1 | awk '{print $4}')
[ $CORES_PER_SOCKET -lt 1 ] && CORES_PER_SOCKET=1
BUF_KB=$(( L3_KB * 2 / CORES_PER_SOCKET ))
MIN_KB=102400
[ $BUF_KB -lt $MIN_KB ] && BUF_KB=$MIN_KB`
BUF_KB=$(( L3_KB * 2 ))
[ $BUF_KB -lt 1 ] && BUF_KB=1`
// for measuring L1 bandwidth and latency (half of L1d cache size minus 4KB)
mlcBufferSetupL1 = `L1D_KB=$(cache_size_kb L1d)
BUF_KB=$(( L1D_KB / 2 - 4 ))
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