From: Mike Kravetz <mkravetz@se...> - 2001-03-22 01:12:39
FYI - From the linux-kernel list.
----- Forwarded message from Ingo Molnar <mingo@...> -----
Date: Wed, 21 Mar 2001 13:11:35 +0100 (CET)
From: Ingo Molnar <mingo@...>
Subject: [patch] pagecache SMP-scalability patch [was: spinlock usage]
To: Anton Blanchard <anton@...>
Cc: Linux Kernel List <linux-kernel@...>
if you are doing SMP-intensive dbench runs, then check out the SMP
pagecache-scalability patch (against 2.4.2-ac20):
this patch splits up the main scalability offender in non-RAM-limited
dbench runs, which is pagecache_lock. The patch was designed and written
by David Miller, and is being forward ported / maintained by me. (The new
pagecache lock design is similar to TCP's hashed spinlocks, which proved
to scale excellently.)
(about lstat(): IMO lstat() should not call into the lowlevel FS code.)
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----- End forwarded message -----
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