From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <6c264481f9b33ea17e28646b71d2565e@plan9.bell-labs.com> To: 9fans@cse.psu.edu Subject: Re: [9fans] timesync doubletime Date: Mon, 7 Aug 2006 22:09:14 -0400 From: geoff@plan9.bell-labs.com In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Topicbox-Message-UUID: 9967960c-ead1-11e9-9d60-3106f5b1d025 We've recently seen some slowness here that affects the clock. So far I think it's only been seen on multiprocessor (multicore) AMD64 systems with Realtek 8169 Gb Ethernet. Setting *ncpu=1 fixes the problem at the cost of using only one processor. When we tried to add debugging to the kernel to track this down, the problem vanished.