diff options
| author | Robert Relyea <rrelyea@redhat.com> | 2020-04-18 17:11:20 -0700 |
|---|---|---|
| committer | Robert Relyea <rrelyea@redhat.com> | 2020-04-18 17:11:20 -0700 |
| commit | 1341c7c22ce500a11d92350131baa5f28dc1390d (patch) | |
| tree | 124265908646edde56da5f6bc37bd1646c96ebe3 /coreconf/config.gypi | |
| parent | 4d1581bb5839991012507f409e02d72857591bc7 (diff) | |
| download | nss-hg-1341c7c22ce500a11d92350131baa5f28dc1390d.tar.gz | |
Bug 1603801 [patch] Avoid dcache pollution from sdb_measureAccess() r=mt
As implemented, when sdb_measureAccess() runs it creates up to 10,000 negative
dcache entries (cached nonexistent filenames).
There is no advantage to leaving these particular filenames in the cache; they
will never be searched again. Subsequent runs will run a new test with an
intentionally different set of filenames. This can have detrimental effects on
some systems; a massive negative dcache can lead to memory or performance
problems.
Since not all platforms have a problem with negative dcache entries, this patch
is limitted to those platforms that request it at compilie time (Linux is
current the only patch that does.)
Differential Revision: https://phabricator.services.mozilla.com/D59652
Diffstat (limited to 'coreconf/config.gypi')
| -rw-r--r-- | coreconf/config.gypi | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/coreconf/config.gypi b/coreconf/config.gypi index 6459bccc9..d18875965 100644 --- a/coreconf/config.gypi +++ b/coreconf/config.gypi @@ -362,6 +362,7 @@ '_DEFAULT_SOURCE', # for <endian.h> functions, strdup, realpath, and getentropy '_BSD_SOURCE', # for the above in glibc <= 2.19 '_POSIX_SOURCE', # for <signal.h> + 'SQL_MEASURE_USE_TEMP_DIR', # use tmpdir for the access calls ], }], [ 'OS=="dragonfly" or OS=="freebsd"', { |