Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > linux.kernel > #1550252
| From | Michal Hocko <mhocko@kernel.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH 4/7] mm, vmscan: show LRU name in mm_vmscan_lru_isolate tracepoint |
| Date | 2017-01-03 23:20 +0100 |
| Message-ID | <sVF7X-3Mr-9@gated-at.bofh.it> (permalink) |
| References | <sTouB-1H0-1@gated-at.bofh.it> <sTouB-1H0-11@gated-at.bofh.it> <sVAL0-10T-7@gated-at.bofh.it> <sVEbU-3aT-21@gated-at.bofh.it> <sVElz-3en-13@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Tue 03-01-17 21:52:44, Michal Hocko wrote:
> On Tue 03-01-17 21:47:45, Michal Hocko wrote:
> > On Tue 03-01-17 18:08:58, Vlastimil Babka wrote:
> > > On 12/28/2016 04:30 PM, Michal Hocko wrote:
> > > > From: Michal Hocko <mhocko@suse.com>
> > > >
> > > > mm_vmscan_lru_isolate currently prints only whether the LRU we isolate
> > > > from is file or anonymous but we do not know which LRU this is. It is
> > > > useful to know whether the list is file or anonymous as well. Change
> > > > the tracepoint to show symbolic names of the lru rather.
> > > >
> > > > Signed-off-by: Michal Hocko <mhocko@suse.com>
> > > > ---
> > > > include/trace/events/vmscan.h | 20 ++++++++++++++------
> > > > mm/vmscan.c | 2 +-
> > > > 2 files changed, 15 insertions(+), 7 deletions(-)
> > > >
> > > > diff --git a/include/trace/events/vmscan.h b/include/trace/events/vmscan.h
> > > > index 6af4dae46db2..cc0b4c456c78 100644
> > > > --- a/include/trace/events/vmscan.h
> > > > +++ b/include/trace/events/vmscan.h
> > > > @@ -36,6 +36,14 @@
> > > > (RECLAIM_WB_ASYNC) \
> > > > )
> > > >
> > > > +#define show_lru_name(lru) \
> > > > + __print_symbolic(lru, \
> > > > + {LRU_INACTIVE_ANON, "LRU_INACTIVE_ANON"}, \
> > > > + {LRU_ACTIVE_ANON, "LRU_ACTIVE_ANON"}, \
> > > > + {LRU_INACTIVE_FILE, "LRU_INACTIVE_FILE"}, \
> > > > + {LRU_ACTIVE_FILE, "LRU_ACTIVE_FILE"}, \
> > > > + {LRU_UNEVICTABLE, "LRU_UNEVICTABLE"})
> > > > +
> > >
> > > Does this work with external tools such as trace-cmd, i.e. does it export
> > > the correct format file?
> >
> > How do I find out?
>
> Well, I've just checked the format file and it says
> print fmt: "isolate_mode=%d classzone=%d order=%d nr_requested=%lu nr_scanned=%lu nr_skipped=%lu nr_taken=%lu lru=%s", REC->isolate_mode, REC->classzone_idx, REC->order, REC->nr_requested, REC->nr_scanned, REC->nr_skipped, REC->nr_taken, __print_symbolic(REC->lru, {LRU_INACTIVE_ANON, "LRU_INACTIVE_ANON"}, {LRU_ACTIVE_ANON, "LRU_ACTIVE_ANON"}, {LRU_INACTIVE_FILE, "LRU_INACTIVE_FILE"}, {LRU_ACTIVE_FILE, "LRU_ACTIVE_FILE"}, {LRU_UNEVICTABLE, "LRU_UNEVICTABLE"})
>
> So the tool should be OK as long as it can find values for LRU_*
> constants. Is this what is the problem?
OK, I got it. We need enum->value translation and all the EM stuff to do
that, right?
I will rework the patch and move the definition to the rest of the EM
family...
--
Michal Hocko
SUSE Labs
Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
[PATCH 0/7] vm, vmscan: enahance vmscan tracepoints Michal Hocko <mhocko@kernel.org> - 2016-12-28 16:40 +0100
[PATCH 7/7] mm, vmscan: add mm_vmscan_inactive_list_is_low tracepoint Michal Hocko <mhocko@kernel.org> - 2016-12-28 16:40 +0100
Re: [PATCH 7/7] mm, vmscan: add mm_vmscan_inactive_list_is_low tracepoint "Hillf Danton" <hillf.zj@alibaba-inc.com> - 2016-12-29 09:30 +0100
[PATCH 1/7] mm, vmscan: remove unused mm_vmscan_memcg_isolate Michal Hocko <mhocko@kernel.org> - 2016-12-28 16:40 +0100
Re: [PATCH 1/7] mm, vmscan: remove unused mm_vmscan_memcg_isolate "Hillf Danton" <hillf.zj@alibaba-inc.com> - 2016-12-29 08:50 +0100
[PATCH 5/7] mm, vmscan: extract shrink_page_list reclaim counters into a struct Michal Hocko <mhocko@kernel.org> - 2016-12-28 16:40 +0100
Re: [PATCH 5/7] mm, vmscan: extract shrink_page_list reclaim counters into a struct "Hillf Danton" <hillf.zj@alibaba-inc.com> - 2016-12-29 09:10 +0100
[PATCH 6/7] mm, vmscan: enhance mm_vmscan_lru_shrink_inactive tracepoint Michal Hocko <mhocko@kernel.org> - 2016-12-28 16:40 +0100
Re: [PATCH 6/7] mm, vmscan: enhance mm_vmscan_lru_shrink_inactive tracepoint "Hillf Danton" <hillf.zj@alibaba-inc.com> - 2016-12-29 09:20 +0100
[PATCH 4/7] mm, vmscan: show LRU name in mm_vmscan_lru_isolate tracepoint Michal Hocko <mhocko@kernel.org> - 2016-12-28 16:40 +0100
Re: [PATCH 4/7] mm, vmscan: show LRU name in mm_vmscan_lru_isolate tracepoint Nikolay Borisov <n.borisov.lkml@gmail.com> - 2016-12-28 17:00 +0100
Re: [PATCH 4/7] mm, vmscan: show LRU name in mm_vmscan_lru_isolate tracepoint Michal Hocko <mhocko@kernel.org> - 2016-12-28 17:10 +0100
Re: [PATCH 4/7] mm, vmscan: show LRU name in mm_vmscan_lru_isolate tracepoint Nikolay Borisov <n.borisov.lkml@gmail.com> - 2016-12-28 17:50 +0100
Re: [PATCH 4/7] mm, vmscan: show LRU name in mm_vmscan_lru_isolate tracepoint Michal Hocko <mhocko@kernel.org> - 2016-12-28 18:00 +0100
Re: [PATCH 4/7] mm, vmscan: show LRU name in mm_vmscan_lru_isolate tracepoint Minchan Kim <minchan@kernel.org> - 2016-12-29 07:10 +0100
Re: [PATCH 4/7] mm, vmscan: show LRU name in mm_vmscan_lru_isolate tracepoint Michal Hocko <mhocko@kernel.org> - 2016-12-29 09:00 +0100
Re: [PATCH 4/7] mm, vmscan: show LRU name in mm_vmscan_lru_isolate tracepoint Minchan Kim <minchan@kernel.org> - 2016-12-30 03:00 +0100
Re: [PATCH 4/7] mm, vmscan: show LRU name in mm_vmscan_lru_isolate tracepoint Michal Hocko <mhocko@kernel.org> - 2016-12-30 10:40 +0100
Re: [PATCH 4/7] mm, vmscan: show LRU name in mm_vmscan_lru_isolate tracepoint "Hillf Danton" <hillf.zj@alibaba-inc.com> - 2016-12-29 09:00 +0100
Re: [PATCH 4/7] mm, vmscan: show LRU name in mm_vmscan_lru_isolate tracepoint Vlastimil Babka <vbabka@suse.cz> - 2017-01-03 18:10 +0100
Re: [PATCH 4/7] mm, vmscan: show LRU name in mm_vmscan_lru_isolate tracepoint Michal Hocko <mhocko@kernel.org> - 2017-01-03 21:50 +0100
Re: [PATCH 4/7] mm, vmscan: show LRU name in mm_vmscan_lru_isolate tracepoint Michal Hocko <mhocko@kernel.org> - 2017-01-03 22:00 +0100
Re: [PATCH 4/7] mm, vmscan: show LRU name in mm_vmscan_lru_isolate tracepoint Michal Hocko <mhocko@kernel.org> - 2017-01-03 22:50 +0100
Re: [PATCH 4/7] mm, vmscan: show LRU name in mm_vmscan_lru_isolate tracepoint Vlastimil Babka <vbabka@suse.cz> - 2017-01-03 22:50 +0100
Re: [PATCH 4/7] mm, vmscan: show LRU name in mm_vmscan_lru_isolate tracepoint Michal Hocko <mhocko@kernel.org> - 2017-01-03 23:20 +0100
[PATCH 3/7] mm, vmscan: show the number of skipped pages in mm_vmscan_lru_isolate Michal Hocko <mhocko@kernel.org> - 2016-12-28 16:40 +0100
Re: [PATCH 3/7] mm, vmscan: show the number of skipped pages in mm_vmscan_lru_isolate Minchan Kim <minchan@kernel.org> - 2016-12-29 07:00 +0100
Re: [PATCH 3/7] mm, vmscan: show the number of skipped pages in mm_vmscan_lru_isolate "Hillf Danton" <hillf.zj@alibaba-inc.com> - 2016-12-29 09:00 +0100
Re: [PATCH 3/7] mm, vmscan: show the number of skipped pages in mm_vmscan_lru_isolate Vlastimil Babka <vbabka@suse.cz> - 2017-01-03 18:30 +0100
Re: [PATCH 3/7] mm, vmscan: show the number of skipped pages in mm_vmscan_lru_isolate Michal Hocko <mhocko@kernel.org> - 2017-01-03 21:50 +0100
[PATCH 2/7] mm, vmscan: add active list aging tracepoint Michal Hocko <mhocko@kernel.org> - 2016-12-28 16:40 +0100
Re: [PATCH 2/7] mm, vmscan: add active list aging tracepoint Minchan Kim <minchan@kernel.org> - 2016-12-29 06:40 +0100
Re: [PATCH 2/7] mm, vmscan: add active list aging tracepoint Michal Hocko <mhocko@kernel.org> - 2016-12-29 09:00 +0100
Re: [PATCH 2/7] mm, vmscan: add active list aging tracepoint Minchan Kim <minchan@kernel.org> - 2016-12-30 02:50 +0100
Re: [PATCH 2/7] mm, vmscan: add active list aging tracepoint Michal Hocko <mhocko@kernel.org> - 2016-12-30 10:30 +0100
Re: [PATCH 2/7] mm, vmscan: add active list aging tracepoint "Hillf Danton" <hillf.zj@alibaba-inc.com> - 2016-12-30 10:50 +0100
Re: [PATCH 2/7] mm, vmscan: add active list aging tracepoint Minchan Kim <minchan@kernel.org> - 2016-12-30 17:10 +0100
Re: [PATCH 2/7] mm, vmscan: add active list aging tracepoint Michal Hocko <mhocko@kernel.org> - 2016-12-30 17:40 +0100
Re: [PATCH 2/7] mm, vmscan: add active list aging tracepoint Michal Hocko <mhocko@kernel.org> - 2016-12-30 18:40 +0100
Re: [PATCH 2/7] mm, vmscan: add active list aging tracepoint Minchan Kim <minchan@kernel.org> - 2017-01-03 06:10 +0100
Re: [PATCH 2/7] mm, vmscan: add active list aging tracepoint Michal Hocko <mhocko@kernel.org> - 2017-01-03 09:30 +0100
Re: [PATCH 2/7] mm, vmscan: add active list aging tracepoint Minchan Kim <minchan@kernel.org> - 2017-01-04 06:10 +0100
Re: [PATCH 2/7] mm, vmscan: add active list aging tracepoint Vlastimil Babka <vbabka@suse.cz> - 2017-01-04 08:30 +0100
Re: [PATCH 2/7] mm, vmscan: add active list aging tracepoint Michal Hocko <mhocko@kernel.org> - 2017-01-04 09:00 +0100
Re: [PATCH 2/7] mm, vmscan: add active list aging tracepoint "Hillf Danton" <hillf.zj@alibaba-inc.com> - 2016-12-29 09:00 +0100
Re: [PATCH 0/7] vm, vmscan: enahance vmscan tracepoints Mel Gorman <mgorman@suse.de> - 2016-12-30 10:20 +0100
Re: [PATCH 0/7] vm, vmscan: enahance vmscan tracepoints Michal Hocko <mhocko@kernel.org> - 2016-12-30 10:40 +0100
Re: [PATCH 0/7] vm, vmscan: enahance vmscan tracepoints Mel Gorman <mgorman@suse.de> - 2016-12-30 11:30 +0100
csiph-web