Re: newfs locks entire machine for 20seconds

2008-01-30 Thread Dieter
> > What *exactly* do you mean by > > > >> machine still locks up with no activity for anywhere from 20 to 30 seconds. > > > > Is there disk activity? (e.g. activity light(s) flashing if you have them) > > Cant tell if there is disk activity its in a DC miles away ;) > > > Does top continue to

Re: newfs + gstat locks entire machine for 20seconds

2008-01-30 Thread Steven Hartland
The plot thickens This stall is not just related to newfs you have to have gstat running as well. If I do the newfs without gstat running then no stall occurs. As soon as Im running gstat while doing the newfs then everything locks as described. Running truss on gstat shows the issue / cause

Re: newfs locks entire machine for 20seconds

2008-01-30 Thread Steven Hartland
- Original Message - From: "Dieter" <[EMAIL PROTECTED]> What *exactly* do you mean by machine still locks up with no activity for anywhere from 20 to 30 seconds. Is there disk activity? (e.g. activity light(s) flashing if you have them) Cant tell if there is disk activity its in a

Re: newfs locks entire machine for 20seconds

2008-01-30 Thread Dieter
In message <[EMAIL PROTECTED]>, "Steven Hartland" writes: > From: "Ivan Voras" <[EMAIL PROTECTED]> > >> The machine is running with ULE on 7.0 as mention using an Areca 1220 > >> controller over 8 disks in RAID 6 + Hotspare. > > > > I'd suggest you first try to reproduce the stall without ULE, wh

Re: newfs locks entire machine for 20seconds

2008-01-30 Thread Steven Hartland
- Original Message - From: "Ivan Voras" <[EMAIL PROTECTED]> The machine is running with ULE on 7.0 as mention using an Areca 1220 controller over 8 disks in RAID 6 + Hotspare. I'd suggest you first try to reproduce the stall without ULE, while keeping all other parameters exactly the

Re: postgresql-performance using sysbench

2008-01-30 Thread Ivan Voras
On 30/01/2008, Kris Kennaway <[EMAIL PROTECTED]> wrote: > Rewrite of the lockmgr primitive, for starters. Then we'll see what > remains. Ok, I know about the lockmgr efforts, and they will surely help some loads. I'll try to compile the results I've been talking about in a few days and post them

Re: postgresql-performance using sysbench

2008-01-30 Thread Kris Kennaway
Ivan Voras wrote: Kris Kennaway wrote: Write performance is something that we are working on, expect to hear about progress over the coming weeks/months. Do you have some notes or descriptions about what is being worked on? I'm currently doing some file system benchmarking for internal purpos

Re: Performance Tracker project update

2008-01-30 Thread Brooks Davis
On Wed, Jan 30, 2008 at 07:20:23PM +0100, Erik Cederstrand wrote: > Kris Kennaway wrote: >> Robert Watson wrote: >> One thing I am looking at is how to best create a library of world >> tarballs that can be used to populate a nfsroot (or hybrid of periodic >> tarballs + binary diffs to save space

Re: Performance Tracker project update

2008-01-30 Thread Erik Cederstrand
Kris Kennaway wrote: Robert Watson wrote: One thing I am looking at is how to best create a library of world tarballs that can be used to populate a nfsroot (or hybrid of periodic tarballs + binary diffs to save space). Then you could provide your benchmark in a standardized format (start/en

Re: network performance

2008-01-30 Thread Stefan Lambrev
Greetings, After playing with many settings and testing various configuration, now I'm able to to receive on bridge more then 800,000 packets/s without errors, which is amazing! Unfortunately the server behind bridge can't handle more then 250,000 packets/s Please advise how I can increase th

Re: newfs locks entire machine for 20seconds

2008-01-30 Thread Steven Hartland
- Original Message - From: "Ivan Voras" <[EMAIL PROTECTED]> Steven Hartland wrote: The machine is running with ULE on 7.0 as mention using an Areca 1220 controller over 8 disks in RAID 6 + Hotspare. I'd suggest you first try to reproduce the stall without ULE, while keeping all oth

Re: newfs locks entire machine for 20seconds

2008-01-30 Thread Ivan Voras
Steven Hartland wrote: > The machine is running with ULE on 7.0 as mention using an Areca 1220 > controller over 8 disks in RAID 6 + Hotspare. I'd suggest you first try to reproduce the stall without ULE, while keeping all other parameters exactly the same. __

Re: postgresql-performance using sysbench

2008-01-30 Thread Ivan Voras
Kris Kennaway wrote: > Write performance is something that we are working on, expect to hear > about progress over the coming weeks/months. Do you have some notes or descriptions about what is being worked on? I'm currently doing some file system benchmarking for internal purposes and I'm seeing

Re: postgresql-performance using sysbench

2008-01-30 Thread Kris Kennaway
Claus Guttesen wrote: I forgot to mention in my first post that I'm using ULE. The p800 controller has a (factory set) 25/75 read/write cache ratio. There's maybe one additional thing: do you dual-boot Linux and FreeBSD? If so, you'll need to set up a separate additional partition for the databa

Re: max-cache-size doesn't work with 9.5.0b1

2008-01-30 Thread Attila Nagy
On 2008.01.30. 3:28, JINMEI Tatuya / 神明達哉 wrote: At Tue, 29 Jan 2008 11:40:39 +0100, Attila Nagy <[EMAIL PROTECTED]> wrote: Without threading I don't see this effect, the memory usage stops at a sane limit and it's size can be affected by setting the max-cache-size option. I don't think y