[lkml]   [2001]   [Sep]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: Locking comment on shrink_caches()
   From: Marcelo Tosatti <>
Date: Tue, 25 Sep 2001 15:40:23 -0300 (BRT)

We can simply lock the pagecachelock and the pagemap_lru_lock at the
beginning of the cleaning function. page_launder() use to do that.

Thats why I asked Andrea if there was long hold times by shrink_caches().

Ok, I see.

I do think it's silly to hold the pagecache_lock during pure scanning
activities of shrink_caches().

It is known that pagecache_lock is the biggest scalability issue on
large SMP systems, and thus the page cache locking patches Ingo and
myself did.

Franks a lot,
David S. Miller
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: 2005-03-22 13:03    [W:0.160 / U:0.012 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site