From: Andrew Morton <akpm@digeo.com>
To: Doug Ledford <dledford@redhat.com>
Cc: James.Bottomley@steeleye.com, patmans@us.ibm.com,
luben@splentec.com, linux-scsi@vger.kernel.org
Subject: Re: scsi command slab allocation under memory pressure
Date: Mon, 3 Feb 2003 14:59:30 -0800 [thread overview]
Message-ID: <20030203145930.34e079dc.akpm@digeo.com> (raw)
In-Reply-To: <20030203225550.GJ29516@redhat.com>
Doug Ledford <dledford@redhat.com> wrote:
>
> Of course, that's just my 5 minute analysis, someone feel free to prove me
> wrong.
I'd agree with that.
Plus there's the PF_MEMALLOC thing which gives swapper-outers an extra
megabyte or two. If _any_ of these allocations are happening in process
context then they will benefit from this.
If all the allocations are happening at interrupt/softirq time then some
changes might be needed.
But I haven't been able to break it, using aix7xxx, with quite harsh
testing.
next prev parent reply other threads:[~2003-02-03 23:04 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-01-29 18:47 scsi command slab allocation under memory pressure Patrick Mansfield
2003-01-29 19:40 ` Luben Tuikov
2003-01-29 20:11 ` Patrick Mansfield
2003-01-29 22:26 ` Luben Tuikov
2003-01-31 6:57 ` Andrew Morton
2003-01-31 13:46 ` James Bottomley
2003-01-31 20:44 ` Andrew Morton
2003-02-01 2:46 ` Patrick Mansfield
2003-02-03 22:55 ` Doug Ledford
2003-02-03 22:59 ` Andrew Morton [this message]
2003-02-03 23:05 ` James Bottomley
2003-02-03 23:19 ` Andrew Morton
2003-02-04 18:04 ` Luben Tuikov
2003-02-04 6:15 ` Andre Hedrick
2003-01-29 22:53 ` James Bottomley
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