From: Aaron Lu <aaron.lu@intel.com>
To: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Vlastimil Babka <vbabka@suse.cz>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
Rik van Riel <riel@redhat.com>,
David Rientjes <rientjes@google.com>,
Mel Gorman <mgorman@suse.de>, Minchan Kim <minchan@kernel.org>
Subject: Re: [RFC 0/3] reduce latency of direct async compaction
Date: Wed, 9 Dec 2015 13:40:06 +0800 [thread overview]
Message-ID: <20151209054006.GA13682@aaronlu.sh.intel.com> (raw)
In-Reply-To: <20151209003353.GA12417@js1304-P5Q-DELUXE>
On Wed, Dec 09, 2015 at 09:33:53AM +0900, Joonsoo Kim wrote:
> On Tue, Dec 08, 2015 at 04:52:42PM +0800, Aaron Lu wrote:
> > On Tue, Dec 08, 2015 at 03:51:16PM +0900, Joonsoo Kim wrote:
> > > I add work-around for this problem at isolate_freepages(). Please test
> > > following one.
> >
> > Still no luck and the error is about the same:
>
> There is a mistake... Could you insert () for
> cc->free_pfn & ~(pageblock_nr_pages-1) like as following?
>
> cc->free_pfn == (cc->free_pfn & ~(pageblock_nr_pages-1))
Oh right, of course.
Good news, the result is much better now:
$ cat {0..8}/swap
cmdline: /lkp/aaron/src/bin/usemem 100064603136
100064603136 transferred in 72 seconds, throughput: 1325 MB/s
cmdline: /lkp/aaron/src/bin/usemem 100072049664
100072049664 transferred in 74 seconds, throughput: 1289 MB/s
cmdline: /lkp/aaron/src/bin/usemem 100070246400
100070246400 transferred in 92 seconds, throughput: 1037 MB/s
cmdline: /lkp/aaron/src/bin/usemem 100069545984
100069545984 transferred in 81 seconds, throughput: 1178 MB/s
cmdline: /lkp/aaron/src/bin/usemem 100058895360
100058895360 transferred in 78 seconds, throughput: 1223 MB/s
cmdline: /lkp/aaron/src/bin/usemem 100066074624
100066074624 transferred in 94 seconds, throughput: 1015 MB/s
cmdline: /lkp/aaron/src/bin/usemem 100062855168
100062855168 transferred in 77 seconds, throughput: 1239 MB/s
cmdline: /lkp/aaron/src/bin/usemem 100060990464
100060990464 transferred in 73 seconds, throughput: 1307 MB/s
cmdline: /lkp/aaron/src/bin/usemem 100064996352
100064996352 transferred in 84 seconds, throughput: 1136 MB/s
Max: 1325 MB/s
Min: 1015 MB/s
Avg: 1194 MB/s
The base result for reference:
$ cat {0..8}/swap
cmdline: /lkp/aaron/src/bin/usemem 100000622592
100000622592 transferred in 103 seconds, throughput: 925 MB/s
cmdline: /lkp/aaron/src/bin/usemem 99999559680
99999559680 transferred in 92 seconds, throughput: 1036 MB/s
cmdline: /lkp/aaron/src/bin/usemem 99996171264
99996171264 transferred in 92 seconds, throughput: 1036 MB/s
cmdline: /lkp/aaron/src/bin/usemem 100005663744
100005663744 transferred in 150 seconds, throughput: 635 MB/s
cmdline: /lkp/aaron/src/bin/usemem 100002966528
100002966528 transferred in 87 seconds, throughput: 1096 MB/s
cmdline: /lkp/aaron/src/bin/usemem 99995784192
99995784192 transferred in 131 seconds, throughput: 727 MB/s
cmdline: /lkp/aaron/src/bin/usemem 100003731456
100003731456 transferred in 97 seconds, throughput: 983 MB/s
cmdline: /lkp/aaron/src/bin/usemem 100006440960
100006440960 transferred in 109 seconds, throughput: 874 MB/s
cmdline: /lkp/aaron/src/bin/usemem 99998813184
99998813184 transferred in 122 seconds, throughput: 781 MB/s
Max: 1096 MB/s
Min: 635 MB/s
Avg: 899 MB/s
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next prev parent reply other threads:[~2015-12-09 5:40 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-03 8:10 [RFC 0/3] reduce latency of direct async compaction Vlastimil Babka
2015-12-03 8:10 ` [RFC 1/3] mm, compaction: reduce spurious pcplist drains Vlastimil Babka
2015-12-03 8:10 ` [RFC 2/3] mm, compaction: make async direct compaction skip blocks where isolation fails Vlastimil Babka
2015-12-03 8:10 ` [RFC 3/3] mm, compaction: direct freepage allocation for async direct compaction Vlastimil Babka
2015-12-03 9:25 ` [RFC 0/3] reduce latency of direct async compaction Aaron Lu
2015-12-03 9:38 ` Vlastimil Babka
2015-12-03 11:35 ` Aaron Lu
2015-12-03 11:52 ` Aaron Lu
2015-12-04 12:34 ` Vlastimil Babka
2015-12-07 7:35 ` Joonsoo Kim
2015-12-07 8:59 ` Aaron Lu
2015-12-08 0:41 ` Joonsoo Kim
2015-12-08 5:14 ` Aaron Lu
2015-12-08 6:51 ` Joonsoo Kim
2015-12-08 8:52 ` Aaron Lu
2015-12-09 0:33 ` Joonsoo Kim
2015-12-09 5:40 ` Aaron Lu [this message]
2015-12-10 4:35 ` Joonsoo Kim
2015-12-10 6:15 ` Aaron Lu
2015-12-04 6:25 ` Aaron Lu
2015-12-04 12:38 ` Vlastimil Babka
2015-12-07 3:14 ` Aaron Lu
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