From: Dipankar Sarma <dipankar@in.ibm.com>
To: linux-kernel@vger.kernel.org
Subject: [PATCH] cacheline align rt_cache_stat struct
Date: Tue, 2 Oct 2001 18:58:16 +0530 [thread overview]
Message-ID: <20011002185816.A8643@in.ibm.com> (raw)
The per-cpu rt_cache_stat structure should be padded to cacheline
to avoid sharing of cachelines between different CPUs. Here is a patch
to do that for SMP kernels.
Thanks
Dipankar
--
Dipankar Sarma <dipankar@in.ibm.com> Project: http://lse.sourceforge.net
Linux Technology Center, IBM Software Lab, Bangalore, India.
diff -urN linux-2.4.10/include/net/route.h linux-2.4.10+rt/include/net/route.h
--- linux-2.4.10/include/net/route.h Thu Sep 27 11:59:45 2001
+++ linux-2.4.10+rt/include/net/route.h Tue Oct 2 18:34:45 2001
@@ -105,7 +105,7 @@
unsigned int out_hit;
unsigned int out_slow_tot;
unsigned int out_slow_mc;
-};
+} ____cacheline_aligned_in_smp;
extern struct ip_rt_acct *ip_rt_acct;
next reply other threads:[~2001-10-02 13:22 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-10-02 13:28 Dipankar Sarma [this message]
2001-10-02 23:06 ` [PATCH] cacheline align rt_cache_stat struct David S. Miller
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