similar to: IO wait on windows servers?

Hi, folks, I''m attempting to run an e-mail server on Xen. The e-mail system is Novell GroupWise, and it serves about 250 users. The disk volume for the e-mail is on my SAN, and I''ve attached the FC LUN to my Xen host, then used the "phy:/dev..." method to forward the disk through to the domU. I''m running into an issue with high I/O wait on the box (~250%)

This fixes a crash when we reload Nouveau DRM. Signed-off-by: Samuel Pitoiset <samuel.pitoiset at gmail.com> --- nvkm/engine/perfmon/base.c | 1 + 1 file changed, 1 insertion(+) diff --git a/nvkm/engine/perfmon/base.c b/nvkm/engine/perfmon/base.c index e9c5e51..7481003 100644 --- a/nvkm/engine/perfmon/base.c +++ b/nvkm/engine/perfmon/base.c @@ -303,6 +303,7 @@ nouveau_perfctx_dtor(struct

hello, is there any way can monitor every lvm parition i/o so we can know which domU hit the hard disk i/o . thanks _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users

I'd like to know what the cause of a particular DB server's slowdown might be. We've ruled out IOPs for the disks (~ 20%) and raw CPU load (top shows perhaps 1/2 of cores busy, but the system slows to a crawl. We're suspecting that we're simply running out of memory bandwidth but have no way to confirm this suspicion. Is there a way to test for this? Think: iostat but for

On 8 June 2015 at 06:40, Samuel Pitoiset <samuel.pitoiset at gmail.com> wrote: > This commit introduces the NVIF_IOCTL_NEW_V0_PERFMON class which will be > used in order to query domains, signals and sources. This separates the > querying and the counting interface. Hey Samuel, I've merged patches 1-4 already, I've got some comments on this one, but after they're solved

Folks I use "yum list installed" to determine if a package has been installed. In particular, I was interested in the "man" program, installed with the command "yum install man". In Centos6, if I look at the results, I see that "man" was installed. This is good. In Centos7, if I look at the results, I see that "man-db" was installed. This

every other day I do full backups to both a second internal disk and an external usb disk. I am using a fully up to date centos 5.1 AMD 64 X2 6400+ machine. with SATA disks. using an NVIDIA chipset, when I do a full rsync the responsiveness of my machine suffers. Slow on the internal disk and really slow on external usb. doing "top" shows 0% idle but only 17% CPU usage by the rsync

Hi All, What is the best way to remotely monitor/administer a group of xen domUs across a network? We''re planning to deploy a few H/W servers with paravirtualized domUs. What are the best alternatives? What works and What doesn''t? Share your experiences. Cheers Rajan _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com

Hi folks, This set of patches is just for clearing the way before introducing the infrastructure for performance counters in perfmon. I'll try to publish a new version of my kernel interface based on nvif in a couple of days. See you.

Hey, everyone, I''m having some issues with a Xen DomU right related to performance. We have an application that cross-compiles a Linux distribution from scratch for embedded systems. We''re attempting to run this application inside a Xen DomU (paravirtualized, modified guest kernel), and the performance is really bad. The culprit seems to be high I/O wait times related to the

We have 1 system ruining Centos7 that is the NFS server. There are 50 external machines that FTP files to this server fairly continuously. We have another system running Centos6 that mounts the partition the files are FTP-ed to using NFS. There is a python script running on the NFS client machine that is reading these files and moving them to a new dir on the same file system (a mv not a cp).

Hi, I have high IO-Wait on the ods (ceph), the osd are running a v3.1-rc9 kernel. I also experience high IO-rates, around 500IO/s reported via iostat. Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s avgrq-sz avgqu-sz await r_await w_await svctm %util sda 0.00 0.00 0.00 6.80 0.00 62.40 18.35 0.04 5.29 0.00 5.29 5.29 3.60 sdb

When the students arrive in a few weeks, we will have several thousand registered samba users and (we anticipate) several hundred simultaneous Samba connections. (This will be our first period of significant Samba use.) Our management folks are asking about collecting periodic Samba usage figures. This is a bit vague, but something like a rolling count of simultaneous connections, per-user

Hi Matt- Thank you for this very detailed and thoughtful reply. On Fri, Oct 21, 2016 at 4:43 PM, Matt Garman <matthew.garman at gmail.com> wrote: > On Fri, Oct 21, 2016 at 4:14 AM, Larry Martell <larry.martell at gmail.com> wrote: >> We have 1 system ruining Centos7 that is the NFS server. There are 50 >> external machines that FTP files to this server fairly

We are testing Samba 3 (and 4) on Fedora Core 13, 10Gbit connection with a Mac OS 10.6.4 system as the client. We will be adding some Windows machines sooner or later with 10Gbit interfaces. We are seeing 100-150MBytes/sec read or write performance between the Mac and the FC13 system over 10Gbit interface but it should be capable of 400-500MBytes/sec. We have a local raid on the FC13 system

I have a server running Centos 4.7 32bit. Will moving from 4Gig of RAM to 8Gig do any good? Since its 32bit I assume it will only be able to address the first 4Gig not? When I installed CentOS I did not do anything special to enable using more then 4Gig if thats required. Exim, spamassassin and Clamd seem to be the biggest load on this machine. My biggest bottle neck is disk I/O anyway. Wish

Hello, When approaching hosting providers for services, the first question many of them asked us was about the amount of IOPS the disk system should support. While we stress-tested our service, we recorded between 4000 and 6000 "merged io operations per second" as seen in "iostat -x" and collectd (varies between the different components of the system, we have a few such

On 18/04/16 22:14, Karol Herbst wrote: > we will access the current set cstate at least every second and this safes us saves > some CPU cycles looking them up every second. > > Signed-off-by: Karol Herbst <nouveau at karolherbst.de> > --- > drm/nouveau/include/nvkm/subdev/clk.h | 2 +- > drm/nouveau/nvkm/engine/device/ctrl.c | 5 ++++- >

I'm trying to resolve an issue where a back is taking a *long* time. The data's being pulled from a CentOS 6 box by a CentOS 7 box. I went to use netstat, and iostat and sar... and they're not there. Should I install sysstat, or are there replacement tools I'm expected to use? mark

So... I was wondering what the impact of splitting up the card compilation by e.g. generation would be. Depending on the split things would get fairly intertwined, so I thought I'd start small. This just splits NVC0 from everything else. I figure that for the people this matters the most to, NVC0 is the least relevant card -- people with sub-1GB of RAM, older hardware. With my config options