Date: Wed, 14 Oct 2009 12:25:42 +0100 From: Kris Kennaway <kris@FreeBSD.org> To: Ivan Voras <ivoras@freebsd.org> Cc: freebsd-stable@freebsd.org Subject: Re: Extreme console latency during disk IO (8.0-RC1, previous releases also affected according to others) Message-ID: <4AD5B536.5030507@FreeBSD.org> In-Reply-To: <9bbcef730910131057i71db846et1f0d4aeadef5e302@mail.gmail.com> References: <E316139E-FFCF-432F-8DCE-62B120C38E55@exscape.org> <CC16B639-7A75-4016-A8A8-5C59E9CD5E95@exscape.org> <hb1qs0$qjd$1@ger.gmane.org> <alpine.BSF.2.00.0910131406340.26071@fledge.watson.org> <9bbcef730910130633w150571a0k461fb4e67a51fb1d@mail.gmail.com> <B5BA3ACC-BC06-4042-8434-0D9395A0F478@freebsd.org> <hb23i7$opq$1@ger.gmane.org> <alpine.BSF.2.00.0910130957540.26159@thebighonker.lerctr.org> <9bbcef730910131057i71db846et1f0d4aeadef5e302@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
Ivan Voras wrote: > 2009/10/13 Larry Rosenman <ler@lerctr.org>: > >>>>> note huge packet loss. It looks like it's VM fault or something like it. >>>> It sounds like the VM is failing to execute the guest during certain >>>> types of I/O. A bit of scheduler tracing in the host OS probably wouldn't go >>>> amiss to confirm that the VM really is suspending the guest >>> It's VMWare ESXi underneath, which is *Officially Not Linux* though some >>> ducks may disagree - anyway, I suspect tracing the host in this way is next >>> to impossible without some kind of diamondium-level contract. >>> >> What information do you need? I have a platinum VMWare contract. >> >> What version of ESXi? > > Hi, > > It is ESXi 3.5 - but if the problem is really in ESXi I presume anyone > could reproduce it. My setup is nothing special - Xeon 5405, 8 GB RAM, > SATA drives on ICH9. I recall others having various weird problems in 3.5 that went away when they upgraded to 4.0. Kris
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?4AD5B536.5030507>