zfs/config
Brian Behlendorf 9eb361aaa5 Default to --disable-debug-kmem
The default kmem debugging (--enable-debug-kmem) can severely impact
performance on large-scale NUMA systems due to the atomic operations
used in the memory accounting. A 32-thread fio test running on a
40-core 80-thread system and performing 100% cached reads with kmem
debugging is:

Enabled:
READ: io=177071MB, aggrb=2951.2MB/s, minb=2951.2MB/s, maxb=2951.2MB/s,

Disabled:
READ: io=271454MB, aggrb=4524.4MB/s, minb=4524.4MB/s, maxb=4524.4MB/s,

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Tim Chase <tim@chase2k.com>
Issues #463
2015-07-21 11:47:10 -07:00
..
.gitignore Add config/compile to config/.gitignore 2014-10-31 16:26:44 -07:00
Rules.am build: use CPPFLAGS 2013-04-02 11:07:11 -07:00
config.awk Allow spl_config.h to be included by dependant packages (updated) 2010-03-22 14:45:33 -07:00
deb.am Add --bump=0 to alien 2013-04-24 16:18:11 -07:00
rpm.am Support parallel build trees (VPATH builds) 2015-07-17 12:53:11 -07:00
spl-build.m4 Default to --disable-debug-kmem 2015-07-21 11:47:10 -07:00
spl-meta.m4 Make license compatibility checks consistent 2014-10-17 15:07:28 -07:00
tgz.am Refresh RPM packaging 2013-03-18 15:31:54 -07:00