Messages in this thread | | | Date | Fri, 1 Jun 2012 05:21:18 -0700 | From | Anton Vorontsov <> | Subject | [PATCH 0/5] Some vmevent fixes... |
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On Tue, May 08, 2012 at 10:36:31AM +0300, Pekka Enberg wrote: [...] > > 2) VMEVENT_ATTR_STATE_ONE_SHOT is misleading name. That is effect as > > edge trigger shot. not only once. > > Would VMEVENT_ATTR_STATE_EDGE_TRIGGER be a better name? [...] > > 4) Currently, vmstat have per-cpu batch and vmstat updating makes 3 > > second delay at maximum. > > This is fine for usual case because almost userland watcher only > > read /proc/vmstat per second. > > But, for vmevent_fd() case, 3 seconds may be unacceptable delay. At > > worst, 128 batch x 4096 > > x 4k pagesize = 2G bytes inaccurate is there. > > That's pretty awful. Anton, Leonid, comments? [...] > > 5) __VMEVENT_ATTR_STATE_VALUE_WAS_LT should be removed from userland > > exporting files. > > When exporing kenrel internal, always silly gus used them and made unhappy. > > Agreed. Anton, care to cook up a patch to do that?
KOSAKI-San, Pekka,
Much thanks for your reviews!
These three issues should be fixed by the following patches. One mm/ change is needed outside of vmevent...
And I'm looking into other issues you pointed out...
Thanks!
--- include/linux/vmevent.h | 10 +++---- include/linux/vmstat.h | 2 ++ mm/vmevent.c | 66 +++++++++++++++++++++++++++++------------------ mm/vmstat.c | 22 +++++++++++++++- 4 files changed, 68 insertions(+), 32 deletions(-)
-- Anton Vorontsov Email: cbouatmailru@gmail.com -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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