similar to: io:::start to nfs mount?

Hi all, How to dtrace a who is writing a veritas volume? Thanks. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.opensolaris.org/pipermail/zfs-discuss/attachments/20070412/dfd8c254/attachment.html>

I have a SunRay server that I am looking at to determine some sizing requirements in my department. The machine has 16G of ram and 10G of swap. Currently, I have about 4G of swap used. I am wondering if dtrace/mdb can be used to find out what lwp/processes have been swapped out? Any hints? This message posted from opensolaris.org

Hi, I have got an implementation of DTrace probes for NFS v3 client. Webrev of my change is at: http://cr.opensolaris.org/~danhua/webrev/ The provider and probes are described in attached proposal. Welcome comments! Regards, Danhua -------------- next part -------------- An embedded and charset-unspecified text was scrubbed... Name: proposal-nfsv3client.txt URL:

Hi, This is a proposal for probes for NFS v3 client(see attachment). These probes are under a new DTrace provider: nfsv3client. These new probes support tracing NFS v3 client activities such as sending RPC requests to NFS v3 server and receiving RPC replies from NFS v3 server. Formats and arguments of these new probes are quite similar to existing NFS v3 probes on server side (provider: nfsv3).

I run thunderbird (both 3.x and 5.x) against dovecot 2.x and frequently see delays "loading message". I admit to having a very large mailbox and running multiple imap clients. I've turned on thunderbird debugging, and at least one pattern I see in the log during the delays (maybe a minute long) is the failed protocol message above. These are no the only delays, but are the ones

The following script is used as a first attempt to discover IO patterns in a dbase setup: #------------------------------------------------------------------ #pragma D option dynvarsize=128m dtrace:::BEGIN { } pid$target::kaio:entry { self->doit = 1; } pid$target::_aiodone:return { self->doit = 0; } io:::start /self->doit || execname == "oracle"/ {

Hi, I''m working on some performance analysis with our database and it seems that when the file system (UFS) is mounted with forcedirectio, the IO probe are not triggered when an I/O event occurs. Could you confirm that ? If so, why ? Seb -- This message posted from opensolaris.org

Perhaps I'm trying to do something that is not allowed, but I have found no such restriction in the documentation. To limit the contact of my Linux boxes with the "products of Bill & Co.", I have mounted a Windows share on my Linux server. When I try to export that same share from the Linux server (as a plain old NFS volume), it mounts without error, but the mountpoint

Does dtrace have a problem catching the return from memset on Mac OSX? The script below catches the entry just fine but the return clause is never entered. Thanks, Joel --- pid$target::memset:entry /arg1 == 0/ { self->size = arg2; self->ts = timestamp; self->vts = vtimestamp; } pid$target::memset:return /self->size/ { @ts = sum(timestamp - self->ts); @vts =

Hi, I''ve encountered this bug: http://www.opensolaris.org/jive/thread.jspa?threadID=108316&tstart=30 and to obviate to the problem I''m using legacy mounts. Now the system boot without problems, but nfs server doesn''t start because couldn''t find any share. So I''ve disabled nfs with zfs set sharenfs=off on my zfs filesystems and tried to use the share

I have been using iosoop script (see http://www.opensolaris.org/os/community/dtrace/scripts/) written by Brendan Gregg to look at the IO operations of my application. When I was running my test-program on a UFS filesystem I could see both read and write operations like: UID PID D BLOCK SIZE COMM PATHNAME 203803 4436 R 6016592 16384 diskio <none> 203803 4436 W 3448432

I'm exporting a directory, firewall's open on both machines (one CentOS 6.6, the other RHEL 6.6), it automounts on the exporting machine, but the other server, not so much. ls /mountpoint/directory eventually times out (directory being the NFS mount). mount -t nfs server:/location/being/exported /mnt works... but an immediate ls /mnt gives me stale file handle. The twist on this: the

Hello, I am running qemu-kvm 1.4.0 and libvirt 1.0.2 on Ubuntu 12.04. I have two NFS mountpoints configured as two separate pools in virsh: <pool type='dir'> <name>nfs1</name> <uuid>419d799c-2493-6ebc-6848-53b0919e7bad</uuid> <capacity unit='bytes'>6836057014272</capacity> <allocation unit='bytes'>0</allocation>

Dtrace and Performance Teams, I have the following IO Performance Specific Questions (and I''m already savy with the lockstat and pre-dtrace utilities for performance analysis.. but in need of details regarding specifying IO bottlenecks @ the controller or IO bus..) : **Q.A*> Determining IO Saturation bottlenecks ( */.. beyond service times and kernel contention.. )/ I''m

Hi everyone, I would like to move my mails from ocfs2 to an NFS share. As the mountpoint and all folders and files belong to nobody/nogroup, dovecot is only able to access the mails if I give full access to "others". I don't like that. How do you NFS-using guys solve this problem? Regards Patrick

m.roth at 5-cent.us wrote: > m.roth at 5-cent.us wrote: >> I'm exporting a directory, firewall's open on both machines (one CentOS >> 6.6, the other RHEL 6.6), it automounts on the exporting machine, but >> the >> other server, not so much. >> >> ls /mountpoint/directory eventually times out (directory being the NFS >> mount). mount -t nfs

We started seeing odd behaviour with clients somehow hammering our ZFS-based NFS server. Nothing is obvious from mpstat/iostat/etc. I''ve seen mention before of NFSv3 client dtrace scripts, and I was wondering if there ever was one for the server end, displaying top talkers, writes/reads, or locations of such to nail down abusive clients short of using snoop/tcpdump to nail down via

I''m curious to know what files are being used from a NFS server perspective. I''m unable to trace the client because it is in the boot phase. Looking at the io provider, I believe it does not allow you to look at what files are being requested. That would lead me to the fbt provider. Does anyone know what fbt provides the file handle for NFS client request on the NFS

Have you considered the mdb dcmd ::pfiles? mfe at inker:~/Code/dtrace/examples$ *pfexec mdb -k* Loading modules: [ unix genunix specfs dtrace mac cpu.generic uppc pcplusmp scsi_vhci zfs ip hook neti sockfs arp usba uhci fctl s1394 stmf stmf_sbd md lofs random idm sd crypto fcp cpc fcip smbsrv nfs ufs logindmux ptm nsmb sppp nsctl sdbc rdc sv ii ipc ] > *::ps ! grep clock-applet* R 1744

Hello Srikant - A quantization distributes the results of your aggregation into ranges ordered by a power-of-two. Presumably what you''d do in your script is capture the inclusive elapsed time of each function call in your library, then use this quantization to see how tightly-banded the times are. Perhaps there''s some blocking I/O in some of your calls, for example, in which