From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Ray Subject: Re: video sync: result of 2.6 kernel experimenting Date: Wed, 31 Aug 2005 00:58:29 -0300 Message-ID: <43152AE5.7070606@mrmighty.net> References: <4313CA51.5000902@mrmighty.net> <43149921.5030709@mrmighty.net> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Sender: linux-assembly-owner@vger.kernel.org List-Id: Content-Type: text/plain; charset="us-ascii"; format="flowed" To: Richard Cooper Cc: linux-assembly@vger.kernel.org Richard Cooper wrote: > > > Anyway, I typed 'set' to see what HZ was set to, it was set to 100, > but I figured the environment variable might be wrong. Playing around > in /proc/ I found that there was an interrupt going off 1000 times a > second, so I figured it was probably HZ=1000. > My understanding is that HZ is set to 100 in userspace, to avoid breaking some userspace programs. It's not the same HZ value that is used in the kernel source in 2.6.