Re: mem=16MB laptop testing

From: Nick Piggin
Date: Tue Oct 14 2003 - 19:37:50 EST




William Lee Irwin III wrote:

So I tried mem=16m on my laptop (stinkpad T21). I made the following
potentially useless observations:


snip



inode_cache 840K 840K 100.00% dentry_cache 746K 753K 99.07% ext3_inode_cache 591K 592K 99.84% size-4096 504K 504K 100.00% size-512 203K 204K 99.75% size-2048 182K 204K 89.22% pgd 188K 188K 100.00% task_struct 100K 108K 92.86% vm_area_struct 93K 101K 92.28% blkdev_requests 101K 101K 100.00%


Hmm blkdev_requests looks big. 4 struct requests are allocated for every queue,
which totals about 600 bytes. What does /sys/block and the blkdev_requests line
from /proc/slabinfo look like?


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