From: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
To: Minchan Kim <minchan@kernel.org>
Cc: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>,
Andrew Morton <akpm@linux-foundation.org>,
linux-kernel@vger.kernel.org,
Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Subject: Re: zram: per-cpu compression streams
Date: Tue, 19 Apr 2016 17:08:21 +0900 [thread overview]
Message-ID: <20160419080821.GB537@swordfish> (raw)
In-Reply-To: <20160419080025.GE18448@bbox>
Hello Minchan,
On (04/19/16 17:00), Minchan Kim wrote:
> Great!
>
> So, based on your experiment, the reason I couldn't see such huge win
> in my mahcine is cache size difference(i.e., yours is twice than mine,
> IIRC.) and my perf stat didn't show such big difference.
> If I have a time, I will test it in bigger machine.
quite possible it's due to the cache size.
[..]
> > NOTE:
> > -- fio seems does not attempt to write to device more than disk size, so
> > the test don't include 're-compresion path'.
>
> I'm convinced now with your data. Super thanks!
> However, as you know, we need data how bad it is in heavy memory pressure.
> Maybe, you can test it with fio and backgound memory hogger,
yeah, sure, will work on it.
> Thanks for the test, Sergey!
thanks!
-ss
next prev parent reply other threads:[~2016-04-19 8:08 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-23 8:12 zram: per-cpu compression streams Sergey Senozhatsky
2016-03-24 23:41 ` Minchan Kim
2016-03-25 1:47 ` Sergey Senozhatsky
2016-03-28 3:21 ` Minchan Kim
2016-03-30 8:34 ` Sergey Senozhatsky
2016-03-30 22:12 ` Minchan Kim
2016-03-31 1:26 ` Sergey Senozhatsky
2016-03-31 5:53 ` Minchan Kim
2016-03-31 6:34 ` Sergey Senozhatsky
2016-04-01 15:38 ` Sergey Senozhatsky
2016-04-04 0:27 ` Minchan Kim
2016-04-04 1:17 ` Sergey Senozhatsky
2016-04-18 7:57 ` Sergey Senozhatsky
2016-04-19 8:00 ` Minchan Kim
2016-04-19 8:08 ` Sergey Senozhatsky [this message]
2016-04-26 11:23 ` Sergey Senozhatsky
2016-04-27 7:29 ` Minchan Kim
2016-04-27 7:43 ` Sergey Senozhatsky
2016-04-27 7:55 ` Minchan Kim
2016-04-27 8:10 ` Sergey Senozhatsky
2016-04-27 8:54 ` Sergey Senozhatsky
2016-04-27 9:01 ` Sergey Senozhatsky
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