From: Pavel Vasilyev <pavel@pavlinux.ru>
To: jordan <triplesquarednine@gmail.com>
Cc: "linux-rt-users@vger.kernel.org" <linux-rt-users@vger.kernel.org>
Subject: Re: Solving Nvidia (blob) latency spikes + convert (nvidia's) semaphores into mutexes patches for 331.20 [patches and links provided]
Date: Fri, 06 Dec 2013 05:01:44 +0400 [thread overview]
Message-ID: <52A121F8.7010607@pavlinux.ru> (raw)
In-Reply-To: <CAOcfFMwQ1-QOOFeLqWD8zNuCfQ9gELsqK8Zq69Zb=+EMzVKd4A@mail.gmail.com>
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06.12.2013 03:43, jordan пишет:
>> 1. Blob after 325.xx.xx does not compile and does not work with our RT patches!
>
> Sure it does.
>
> make IGNORE_PREEMPT_RT_PRESENCE=1
Wow, I did not know, thanks. I until on 319.xx
>
>> 3. SFENCE need on SMP systems. Although, delay in 1000 nanoseconds - it's awful
> Would you care to goto into more detail on this?
https://www.kernel.org/doc/Documentation/memory-barriers.txt
--
Pavel.
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next prev parent reply other threads:[~2013-12-06 1:01 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-05 21:20 Solving Nvidia (blob) latency spikes + convert (nvidia's) semaphores into mutexes patches for 331.20 [patches and links provided] jordan
2013-12-05 23:04 ` Pavel Vasilyev
2013-12-05 23:43 ` jordan
2013-12-06 1:01 ` Pavel Vasilyev [this message]
2013-12-06 1:16 ` jordan
2013-12-17 18:10 ` Glenn Elliott
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