From: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
To: bradley.d.volkin@intel.com, intel-gfx@lists.freedesktop.org
Subject: Re: [PATCH] drm/i915: Use hash tables for the command parser
Date: Thu, 08 May 2014 14:42:16 +0100 [thread overview]
Message-ID: <536B89B8.9070303@linux.intel.com> (raw)
In-Reply-To: <1398698528-25256-1-git-send-email-bradley.d.volkin@intel.com>
On 04/28/2014 04:22 PM, bradley.d.volkin@intel.com wrote:
> From: Brad Volkin <bradley.d.volkin@intel.com>
>
> For clients that submit large batch buffers the command parser has
> a substantial impact on performance. On my HSW ULT system performance
> drops as much as ~20% on some tests. Most of the time is spent in the
> command lookup code. Converting that from the current naive search to
> a hash table lookup reduces the performance impact by as much as ~10%.
I have another question - what about register lookups, do they come up
in profiling as significant?
Regards,
Tvrtko
next prev parent reply other threads:[~2014-05-08 13:42 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-28 15:22 [PATCH] drm/i915: Use hash tables for the command parser bradley.d.volkin
2014-04-28 15:42 ` Daniel Vetter
2014-04-28 16:01 ` Volkin, Bradley D
2014-04-28 15:48 ` Volkin, Bradley D
2014-04-28 15:53 ` Daniel Vetter
2014-04-28 16:07 ` Volkin, Bradley D
2014-04-28 16:11 ` Daniel Vetter
2014-05-07 16:34 ` Volkin, Bradley D
2014-05-08 9:56 ` Tvrtko Ursulin
2014-05-08 11:44 ` Damien Lespiau
2014-05-08 12:25 ` Tvrtko Ursulin
2014-05-08 13:02 ` Damien Lespiau
2014-05-08 13:24 ` Tvrtko Ursulin
2014-05-08 13:52 ` Damien Lespiau
2014-05-08 15:27 ` Volkin, Bradley D
2014-05-08 15:45 ` Ville Syrjälä
2014-05-08 16:02 ` Volkin, Bradley D
2014-05-12 16:24 ` Daniel Vetter
2014-05-12 16:41 ` Volkin, Bradley D
2014-05-12 17:47 ` Daniel Vetter
2014-05-08 15:50 ` Tvrtko Ursulin
2014-05-08 16:04 ` Volkin, Bradley D
2014-05-08 13:05 ` Damien Lespiau
2014-05-08 13:15 ` Damien Lespiau
2014-05-08 15:53 ` Volkin, Bradley D
2014-05-08 15:59 ` Damien Lespiau
2014-05-08 13:42 ` Tvrtko Ursulin [this message]
2014-05-08 15:40 ` Volkin, Bradley D
-- strict thread matches above, loose matches on Subject: below --
2014-05-10 21:10 bradley.d.volkin
2014-05-12 13:47 ` Damien Lespiau
2014-05-12 14:49 ` Tvrtko Ursulin
2014-05-12 16:49 ` Daniel Vetter
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