On 22.02.2022 13:23, Hyeonggon Yoo wrote:
On Tue, Feb 22, 2022 at 12:22:02PM +0300, Vasily Averin wrote:
Dear all,
I've found that /proc/slabinfo shows inadequate numbers of in-use slab objects.
it assumes that all objects stored in cpu caches are always 100% in use.
Is it a bug or perhaps a well-known feature that I missed?
This is not a bug..
Thank you for explanation,
I think it would be useful to document this somewhere. (Documnetation? man slabinfo ?)
Also I would like to know is it some (fast) way to get real numbers in userspace ?
crash is too fat for this task.
Do you know perhaps some other userspace utility or may be systemtap/drgn script?
I'm preparing new set of memcg accounting patches, with reparired tools/cgroup/memcg_slapinfo.py
I can get numbers of accounted resources, but I need to understand how may resources was NOT
accounted to memcg but allocated on host. I expected get these numbers from host's slabinfo but
it does not show correct numbers.
Thank you,
Vasily Averin
