[lkml]   [2006]   [Aug]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: Why Semaphore Hardware-Dependent?
On Sun, 27 Aug 2006, Andi Kleen wrote:

> x86-64 always uses the spinlocked version (vs i386 using the atomic one)
> and I haven't heard of anybody complaining.

Ia64 has special counters for rwsemaphores. I'd like to see if there is
any performance loss. mmap_sem is a rwsemaphore. This is performance

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2006-08-28 00:17    [W:0.035 / U:1.464 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site