From: Anton Blanchard <anton@samba.org>
To: Ravikiran G Thirumalai <kiran@in.ibm.com>
Cc: Jack Steiner <steiner@sgi.com>, linux-kernel@vger.kernel.org
Subject: Re: hot cache line due to note_interrupt()
Date: Wed, 12 Nov 2003 03:25:23 +1100 [thread overview]
Message-ID: <20031111162523.GN930@krispykreme> (raw)
In-Reply-To: <20031111082915.GC1130@llm08.in.ibm.com>
> The answer to this is probably alloc_percpu for the counters.
> right now this might not possible because irq_desc_t table might be used very
> early, and alloc_percpu uses slab underneath. alloc_percpu will have to be
> made to work early enough for this....
Also keep in mind the memory bloat with high NR_IRQS and NR_IRQS.
Anton
next prev parent reply other threads:[~2003-11-11 16:28 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-11-10 21:58 hot cache line due to note_interrupt() Jack Steiner
2003-11-10 23:00 ` Anton Blanchard
2003-11-11 8:29 ` Ravikiran G Thirumalai
2003-11-11 16:25 ` Anton Blanchard [this message]
2003-11-11 19:58 ` Andrew Morton
2003-11-14 17:45 ` Jack Steiner
2003-11-14 17:57 ` Andrew Morton
2003-11-14 18:11 ` Jack Steiner
2003-11-14 18:10 ` David Mosberger
2003-11-14 18:17 ` Linus Torvalds
2003-11-15 5:18 ` Jeff Garzik
2003-11-14 19:10 ` Anton Blanchard
2003-11-14 19:28 ` Mike Fedyk
-- strict thread matches above, loose matches on Subject: below --
2003-11-10 19:08 Jack Steiner
2003-11-10 19:22 ` David Mosberger
2003-11-10 20:23 ` Jack Steiner
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