From: Dave Hansen <dave.hansen@intel.com>
To: lkp@lists.01.org
Subject: Re: [vfs] 662aa027bda: -7.2% will-it-scale.scalability
Date: Tue, 27 May 2014 11:19:40 -0700 [thread overview]
Message-ID: <5384D73C.2030109@intel.com> (raw)
In-Reply-To: <5384B634.7080902@intel.com>
[-- Attachment #1: Type: text/plain, Size: 666 bytes --]
On 05/27/2014 08:58 AM, Jet Chen wrote:
> 9f498c77b4332b4 662aa027bdaa082aa3dd21886
> --------------- -------------------------
> 0.63 ~ 0% -7.2% 0.58 ~ 0% TOTAL will-it-scale.scalability
> 12861563 ~ 0% -1.1% 12715565 ~ 0% TOTAL will-it-scale.per_process_ops
There's something funky here.
What are the numbers being factored in to 'will-it-scale.scalability'
and 'will-it-scale.per_process_ops'? Could you share the raw csv's that
will-it-scale generated?
Since 'per_process_ops' is only off by 1.1%, my suspicion is that some
consistent skew on the 1-process case is getting magnified in to the
scalability number.
WARNING: multiple messages have this Message-ID (diff)
From: Dave Hansen <dave.hansen@intel.com>
To: Jet Chen <jet.chen@intel.com>, Miklos Szeredi <mszeredi@suse.cz>
Cc: Fengguang Wu <fengguang.wu@intel.com>,
LKML <linux-kernel@vger.kernel.org>,
lkp@01.org
Subject: Re: [vfs] 662aa027bda: -7.2% will-it-scale.scalability
Date: Tue, 27 May 2014 11:19:40 -0700 [thread overview]
Message-ID: <5384D73C.2030109@intel.com> (raw)
In-Reply-To: <5384B634.7080902@intel.com>
On 05/27/2014 08:58 AM, Jet Chen wrote:
> 9f498c77b4332b4 662aa027bdaa082aa3dd21886
> --------------- -------------------------
> 0.63 ~ 0% -7.2% 0.58 ~ 0% TOTAL will-it-scale.scalability
> 12861563 ~ 0% -1.1% 12715565 ~ 0% TOTAL will-it-scale.per_process_ops
There's something funky here.
What are the numbers being factored in to 'will-it-scale.scalability'
and 'will-it-scale.per_process_ops'? Could you share the raw csv's that
will-it-scale generated?
Since 'per_process_ops' is only off by 1.1%, my suspicion is that some
consistent skew on the 1-process case is getting magnified in to the
scalability number.
next prev parent reply other threads:[~2014-05-27 18:19 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-27 15:58 [vfs] 662aa027bda: -7.2% will-it-scale.scalability Jet Chen
2014-05-27 15:58 ` Jet Chen
2014-05-27 16:25 ` Miklos Szeredi
2014-05-27 16:25 ` Miklos Szeredi
2014-05-27 18:19 ` Dave Hansen [this message]
2014-05-27 18:19 ` Dave Hansen
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