From: Joonsoo Kim <iamjoonsoo.kim@lge.com>
To: Aaron Lu <aaron.lu@intel.com>
Cc: Vlastimil Babka <vbabka@suse.cz>,
Linux Memory Management List <linux-mm@kvack.org>,
Huang Ying <ying.huang@intel.com>,
Dave Hansen <dave.hansen@intel.com>,
Tim Chen <tim.c.chen@linux.intel.com>,
lkp@lists.01.org, Andrea Arcangeli <aarcange@redhat.com>,
David Rientjes <rientjes@google.com>
Subject: Re: hugepage compaction causes performance drop
Date: Tue, 24 Nov 2015 13:55:36 +0900 [thread overview]
Message-ID: <20151124045536.GA3112@js1304-P5Q-DELUXE> (raw)
In-Reply-To: <5653DC2C.3090706@intel.com>
On Tue, Nov 24, 2015 at 11:40:28AM +0800, Aaron Lu wrote:
> On 11/23/2015 05:24 PM, Joonsoo Kim wrote:
> > 2015-11-23 17:33 GMT+09:00 Aaron Lu <aaron.lu@intel.com>:
> >> On 11/23/2015 04:16 PM, Joonsoo Kim wrote:
> >>>
> >>> And, please attach always-always's vmstat numbers, too.
> >>
> >> Sure, attached the vmstat tool output, taken every second.
> >
> > Oops... I'd like to see '1 sec interval cat /proc/vmstat' for always-never.
>
> Here it is, the proc-vmstat for always-never.
Okay. In this case, compaction never happen.
Could you show 1 sec interval cat /proc/pagetypeinfo for
always-always?
> BTW, I'm still learning how to do proper ftrace for this case and it may
> take a while.
You can do it simply with trace-cmd.
sudo trace-cmd record -e compaction &
run test program
fg
Ctrl + c
sudo trace-cmd report
Thanks.
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next prev parent reply other threads:[~2015-11-24 5:10 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-19 9:29 Aaron Lu
2015-11-19 13:29 ` Vlastimil Babka
2015-11-20 8:55 ` Aaron Lu
2015-11-20 9:33 ` Aaron Lu
2015-11-20 10:06 ` Vlastimil Babka
2015-11-23 8:16 ` Joonsoo Kim
2015-11-23 8:33 ` Aaron Lu
2015-11-23 9:24 ` Joonsoo Kim
2015-11-24 3:40 ` Aaron Lu
2015-11-24 4:55 ` Joonsoo Kim [this message]
2015-11-24 7:27 ` Aaron Lu
2015-11-24 8:29 ` Joonsoo Kim
2015-11-25 12:44 ` Vlastimil Babka
2015-11-26 5:47 ` Aaron Lu
2015-11-24 2:45 ` Joonsoo Kim
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