Alfred Perlstein wrote:
* Jeff Roberson <[EMAIL PROTECTED]> [070904 17:47] wrote:
On Tue, 4 Sep 2007, Alfred Perlstein wrote:
alfred 2007-09-04 22:40:41 UTC
FreeBSD src repository
Modified files: (Branch: RELENG_6)
sys/conf NOTES files options
sys/dev/acpica acpi_ec.c
sys/kern kern_ktrace.c kern_sx.c kern_thread.c
subr_sleepqueue.c subr_turnstile.c
sys/netinet6 in6_src.c
sys/sys proc.h sleepqueue.h sx.h turnstile.h
sys/vm vm_map.c
Added files: (Branch: RELENG_6)
sys/kern kern_rwlock.c
sys/sys _rwlock.h _sx.h lock_profile.h rwlock.h
Log:
Backport of optimized sx locks and rwlocks from FreeBSD 7.0.
Thanks for this alfred. Any chance you're going to also backport the
improved filedesc locking rwatson did?
I'd like to!
If you have some numbers that would certainly help me justifying time allocation
for it.
-Alfred
Check my slides from the devsummit, at
http://people.freebsd.org/~kris/scaling/Scalability%20Update.pdf
Most of the improvement to mysql on 7.0 came from fixed sx locks and
converting filedesc to use them.
Kris
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