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Use sysconf to determine cacheline size at runtime.

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Determine cacheline size at runtime if supported
using sysconf(_SC_LEVEL1_DCACHE_LINESIZE). In case not supported,
fallback to compile time defaults.
This commit is contained in:
Debayan Ghosh
2017-12-11 16:28:11 +00:00
parent b75f419b2c
commit d2d737e70b
2 changed files with 20 additions and 0 deletions
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10
auto/unix
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@@ -964,6 +964,16 @@ ngx_feature_test="sysconf(_SC_NPROCESSORS_ONLN)"
. auto/feature
ngx_feature="sysconf(_SC_LEVEL1_DCACHE_LINESIZE)"
ngx_feature_name="NGX_HAVE_LEVEL1_DCACHE_LINESIZE"
ngx_feature_run=no
ngx_feature_incs=
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test="sysconf(_SC_LEVEL1_DCACHE_LINESIZE)"
. auto/feature
ngx_feature="openat(), fstatat()"
ngx_feature_name="NGX_HAVE_OPENAT"
ngx_feature_run=no