Re: 8-STABLE Slow Write Speeds on ESXI 4.0

2010-08-09 Thread Joshua Boyd
On Tue, Aug 10, 2010 at 12:05 AM, Jeremy Chadwick wrote: > On Mon, Aug 09, 2010 at 11:59:46PM -0400, Joshua Boyd wrote: > > On Mon, Aug 9, 2010 at 12:11 PM, Jeremy Chadwick > > wrote: > > > > > On Mon, Aug 09, 2010 at 05:12:21PM +0200, Ivan Voras wrote: > > > > On 9 August 2010 16:55, Joshua Boyd

Re: 8-STABLE Slow Write Speeds on ESXI 4.0

2010-08-09 Thread Jeremy Chadwick
On Mon, Aug 09, 2010 at 11:59:46PM -0400, Joshua Boyd wrote: > On Mon, Aug 9, 2010 at 12:11 PM, Jeremy Chadwick > wrote: > > > On Mon, Aug 09, 2010 at 05:12:21PM +0200, Ivan Voras wrote: > > > On 9 August 2010 16:55, Joshua Boyd wrote: > > > > On Sat, Aug 7, 2010 at 1:58 PM, Ivan Voras wrote: >

Re: 8-STABLE Slow Write Speeds on ESXI 4.0

2010-08-09 Thread Joshua Boyd
On Mon, Aug 9, 2010 at 11:24 AM, Ivan Voras wrote: > On 9.8.2010 17:12, Ivan Voras wrote: > > On 9 August 2010 16:55, Joshua Boyd wrote: > >> On Sat, Aug 7, 2010 at 1:58 PM, Ivan Voras wrote: > > >> I'm going to try 7.3-RELEASE today, just to make sure that this isn't a > >> regression of some

Re: 8-STABLE Slow Write Speeds on ESXI 4.0

2010-08-09 Thread Joshua Boyd
On Mon, Aug 9, 2010 at 12:38 PM, Ivan Voras wrote: > On 9 August 2010 18:11, Jeremy Chadwick wrote: > > > I thought Intel VT-d was supposed to help address things like this? > > Probably - > http://www.intel.com/technology/itj/2006/v10i3/2-io/7-conclusion.htm > says it should help unmodified gue

Re: 8-STABLE Slow Write Speeds on ESXI 4.0

2010-08-09 Thread Joshua Boyd
On Mon, Aug 9, 2010 at 12:11 PM, Jeremy Chadwick wrote: > On Mon, Aug 09, 2010 at 05:12:21PM +0200, Ivan Voras wrote: > > On 9 August 2010 16:55, Joshua Boyd wrote: > > > On Sat, Aug 7, 2010 at 1:58 PM, Ivan Voras wrote: > > >> > > >> On 7 August 2010 19:03, Joshua Boyd wrote: > > >> > On Sat,

Re: 8-STABLE Slow Write Speeds on ESXI 4.0

2010-08-09 Thread Adrian Wontroba
On Mon, Aug 09, 2010 at 09:11:24AM -0700, Jeremy Chadwick wrote: > FWIW, Workstation 7.1 is fairly adamant about stating "if you want > faster disk I/O, pre-allocate the disk space rather than let disk use > grow dynamically". I've never tested this however. Anecdotal, as I have no comparative pe

Re: 8-STABLE Slow Write Speeds on ESXI 4.0

2010-08-09 Thread Ivan Voras
On 9 August 2010 18:11, Jeremy Chadwick wrote: > I thought Intel VT-d was supposed to help address things like this? Probably - http://www.intel.com/technology/itj/2006/v10i3/2-io/7-conclusion.htm says it should help unmodified guests, but I don't know for sure. I do know that Nehalems run faste

Re: 8-STABLE Slow Write Speeds on ESXI 4.0

2010-08-09 Thread Jeremy Chadwick
On Mon, Aug 09, 2010 at 05:12:21PM +0200, Ivan Voras wrote: > On 9 August 2010 16:55, Joshua Boyd wrote: > > On Sat, Aug 7, 2010 at 1:58 PM, Ivan Voras wrote: > >> > >> On 7 August 2010 19:03, Joshua Boyd wrote: > >> > On Sat, Aug 7, 2010 at 7:57 AM, Ivan Voras wrote: > >> > >> >> It's unlikely

Re: 8-STABLE Slow Write Speeds on ESXI 4.0

2010-08-09 Thread Ivan Voras
On 9.8.2010 17:12, Ivan Voras wrote: > On 9 August 2010 16:55, Joshua Boyd wrote: >> On Sat, Aug 7, 2010 at 1:58 PM, Ivan Voras wrote: >> I'm going to try 7.3-RELEASE today, just to make sure that this isn't a >> regression of some kind. It seems from reading other posts that this used to >> wor

Re: 8-STABLE Slow Write Speeds on ESXI 4.0

2010-08-09 Thread Ivan Voras
On 9 August 2010 16:55, Joshua Boyd wrote: > On Sat, Aug 7, 2010 at 1:58 PM, Ivan Voras wrote: >> >> On 7 August 2010 19:03, Joshua Boyd wrote: >> > On Sat, Aug 7, 2010 at 7:57 AM, Ivan Voras wrote: >> >> >> It's unlikely they will help, but try: >> >> >> >> vfs.read_max=32 >> >> >> >> for read

Re: 8-STABLE Slow Write Speeds on ESXI 4.0

2010-08-09 Thread Joshua Boyd
On Sat, Aug 7, 2010 at 1:58 PM, Ivan Voras wrote: > On 7 August 2010 19:03, Joshua Boyd wrote: > > On Sat, Aug 7, 2010 at 7:57 AM, Ivan Voras wrote: > > >> It's unlikely they will help, but try: > >> > >> vfs.read_max=32 > >> > >> for read speeds (but test using the UFS file system, not as a ra

Re: 8-STABLE Slow Write Speeds on ESXI 4.0

2010-08-07 Thread Ivan Voras
On 7 August 2010 19:03, Joshua Boyd wrote: > On Sat, Aug 7, 2010 at 7:57 AM, Ivan Voras wrote: >> It's unlikely they will help, but try: >> >> vfs.read_max=32 >> >> for read speeds (but test using the UFS file system, not as a raw device >> like above), and: >> >> vfs.hirunningspace=8388608 >> v

Re: 8-STABLE Slow Write Speeds on ESXI 4.0

2010-08-07 Thread Ivan Voras
On 7.8.2010 3:21, Joshua Boyd wrote: > Hello, > > I'm experiencing slow write speeds on 8-STABLE running on an ESXI 4.0 > server, despite whatever tunables I've thrown at it. Read speeds are slower > than they should be, but acceptable. Note, this is a thick provisioned disk, > not thin. > > Spee

8-STABLE Slow Write Speeds on ESXI 4.0

2010-08-06 Thread Joshua Boyd
Hello, I'm experiencing slow write speeds on 8-STABLE running on an ESXI 4.0 server, despite whatever tunables I've thrown at it. Read speeds are slower than they should be, but acceptable. Note, this is a thick provisioned disk, not thin. Speeds on Windows hosts are as expected for an MD3000 DAS