Messages in this thread | | | From | "Huang\, Ying" <> | Subject | Re: [PATCH -mm -v3 1/6] mm, swap: Add swap cache statistics sysfs interface | Date | Wed, 26 Jul 2017 09:30:26 +0800 |
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Hi, Rik,
Rik van Riel <riel@redhat.com> writes:
> On Tue, 2017-07-25 at 09:51 +0800, Huang, Ying wrote: >> From: Huang Ying <ying.huang@intel.com> >> >> The swap cache stats could be gotten only via sysrq, which isn't >> convenient in some situation. So the sysfs interface of swap cache >> stats is added for that. The added sysfs directories/files are as >> follow, >> >> /sys/kernel/mm/swap >> /sys/kernel/mm/swap/cache_find_total >> /sys/kernel/mm/swap/cache_find_success >> /sys/kernel/mm/swap/cache_add >> /sys/kernel/mm/swap/cache_del >> /sys/kernel/mm/swap/cache_pages >> > What is the advantage of this vs new fields in > /proc/vmstat, which is where most of the VM > statistics seem to live?
As proposed by Andrew, will use debugfs for them, because they are mostly developer related.
Best Regards, Huang, Ying
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