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[patch 0/2] reduce agpgart memory allocation time

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From: Shaohua Li
Subject: [patch 0/2] reduce agpgart memory allocation time
Date: Sunday, August 3, 2008 - 11:51 pm

agpgart memory allocation is quite expensive. For each page agpgart
allocated, it changes the page to uc and as result flush tlb/cache for
the page. In my test, Intel Xorg driver takes about 0.2s for a 32M 3D
fb, and the total time for memory allocation is about 0.33s when intel
xorg driver initializes. Below patches fix the gap. It can reduce the
time to 0.03s, so xserver can boot 0.3s faster.

Thanks,
Shaohua

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Messages in current thread:
[patch 0/2] reduce agpgart memory allocation time, Shaohua Li, (Sun Aug 3, 11:51 pm)
Re: [patch 0/2] reduce agpgart memory allocation time, Dave Airlie, (Sun Aug 3, 11:53 pm)
Re: [patch 0/2] reduce agpgart memory allocation time, Shaohua Li, (Mon Aug 4, 12:14 am)
Re: [patch 0/2] reduce agpgart memory allocation time, Arjan van de Ven, (Mon Aug 4, 6:42 am)