Messages in this thread | | | Subject | RE: PATCH: Further aacraid work | Date | Thu, 17 Jun 2004 13:54:38 -0400 | From | "Salyzyn, Mark" <> |
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And I might add, undoing the entropy to result in the descending page list (but that is the forth time I've said this).
I ran heavy sequential load overnight and continued to have this characteristic when taking snapshots of command SG lists. The average SG element size statistically was 4168 bytes.
Sincerely -- Mark Salyzyn
-----Original Message----- From: Alan Cox [mailto:alan@redhat.com] Sent: Thursday, June 17, 2004 12:47 PM To: Clay Haapala Cc: James Bottomley; Salyzyn, Mark; Christoph Hellwig; Alan Cox; Linux Kernel; SCSI Mailing List Subject: Re: PATCH: Further aacraid work
On Thu, Jun 17, 2004 at 11:32:29AM -0500, Clay Haapala wrote: > So, on regular x86 this is a matter of convenience/timing, and the > page assignments will tend toward, but not always be, random 1-page > entries as the system is used.
In 2.4 at least it shows no sign of degenerating in that way, something in the VM is undoing the entropy
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