similar to: fsflush writes very slow

I am teaching a DTrace class and a student noticed that 2 iosnoop scripts run in two different windows were producing different results. I was not able to answer why this is. Can anyone explain this. Here are the reults from the two windows: # io.d ... sched 0 <none> 1024 dad1 W 0.156 bash 1998

Hello, I use Brendan''s sysperfstat script to see the overall system performance and found the the disk utilization is over 100: 15:51:38 14.52 15.01 200.00 24.42 0.00 0.00 83.53 0.00 15:51:42 11.37 15.01 200.00 25.48 0.00 0.00 88.43 0.00 ------ Utilisation ------ ------ Saturation ------ Time %CPU %Mem %Disk %Net CPU Mem

Author: maybee Repository: /hg/zfs-crypto/gate Revision: 2dd24a5efe8bb703f8a0b96d0cbaab6d4f744456 Log message: 6413573 deadlock between fsflush() and zfs_create() 6416101 du inside snapshot produces bad sizes and paths Files: update: usr/src/uts/common/fs/zfs/sys/zfs_znode.h update: usr/src/uts/common/fs/zfs/zfs_dir.c update: usr/src/uts/common/fs/zfs/zfs_vnops.c update:

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 hi, i''m trying to use the nfsv3 provider on S10U6, with the following simple script: #! /usr/sbin/dtrace -s #pragma D option quiet nfsv3:::op-read-start { printf("%s\n", args[1]->noi_curpath); } however, when running it, i get the following error: dtrace: failed to compile script ./nfs2.d: line 5: failed to grab

G''Day Folks, I''ve just rewritten iosnoop so that uses command line arguments (I caved in and used a little Bourne shell for this - hence it''s lost it''s ".d" extension). It''s much more useful now. # iosnoop -h USAGE: iosnoop [-a|-A|-Degstv] [-d device] [-f filename] [-m mount_point] iosnoop # default output

hello anyone faced this error before? dtrace: processing aborted: Abort due to systemic unresponsiveness I used iosnoop -evD > iosnoop.log thanks. __________________________________________________________ Sent from Yahoo! Mail - a smarter inbox http://uk.mail.yahoo.com

I''m interested in monitoring the amount of stack used by a multi-threaded program. I assume ''stackdepth'' built-in would be useful...but not sure. Been through demo''s, ToolKit, and internals..but it''s just not clicking for me yet. Not sure how to measure start/end of stack size dynamically...Anyone know how to break this down? This message posted from

Hello, I''m a newby to dtrace and have just installed the dtrace toolkit v0.92 on a core soalris 10 1/06 installation on SUN v40z. I have tried the following commands: iotop iosnoop but I get the message dtrace: invalid probe specifier and a lot of code. At the end it says: : in action list: failed to resolve uid: Unknown variable name Could it be, that there are some

We have two SUSE SLES 9.0 x86-64 servers on gigabit network, one with RAID1 and samba 3.0.4, and one with RAID10 upgraded to samba 3.0.9. Both have the same problem: when you copy from server to client, speeds are on big files about 40MB/s for RAID1 and about 60MB/s for RAID10. But when you copy to server, speed are about 8MB/s. I have set up ftp servers on them just to try ftp protocol

Hi. T2000 1.2GHz 8-core, 32GB RAM, S10U3, zil_disable=1. Command ''zpool export f3-2'' is hung for 30 minutes now and still is going. Nothing else is running on the server. I can see one CPU being 100% in SYS like: bash-3.00# mpstat 1 [...] CPU minf mjf xcal intr ithr csw icsw migr smtx srw syscl usr sys wt idl 0 0 0 67 220 110 20 0 0 0 0

After building and install dovecot I then made my own self signed SSL certs and placed them carefully into the correct places : Thus : # grep -v "^#" dovecot-openssl.cnf | grep -v "^$" [ req ] default_bits = 1024 encrypt_key = yes distinguished_name = req_dn x509_extensions = cert_type prompt = no [ req_dn ] C=CA ST=Ontario L=Toronto O=Blastwave OU=IMAP server

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

Dear R core team Please apologize for posting the same question twice on R-help and R-devel. Since I was not sure which list is appropriate I tried R-help (Tue Mar 22), but got no answer. Now I do not know if the formulation of my question was unclear or the question is not so easy to answer or to easy (what I do not hope). My problem: I create a new S4 class, containing one slot, data (of

Dear R gurus I've a question concerning the transformation of a new S4 class (that I defined) and the existing class "POSIXlt". I did the following: ## Definition of the new class: setClass("dtime", representation(data = "POSIXlt"), prototype(data = as.POSIXlt("2004/06/01"))) ## Transformation between the new class "dtime"

Hi, I would appreciate if somebody could help me with this small issue... I have a dataframe like this (originaly has more than 100 000 rows): > subz jul time dtime fix ddawn ddusk day 101608 15006 2011-02-01 19:14:49 19.24694 noon 7.916667 19.88333 1 101609 15006 2011-02-01 19:24:49 19.41361 midnight 7.916667 19.56667 1 101610 15006 2011-02-01

Hi. I was using ext3 0.0.1 without any problems in the last 33 days (same boot). / was still ext2, but I changed /etc/fstab to ext3. /home/ftp/pub/ is ext3. I mounted /home/ftp/pub/slakware/bare.i with loopback in /mnt/floppy/. After some time: ==> /var/log/syslog <== Jul 4 09:40:51 pervalidus kernel: Assertion failure in ext3_prepare_write() at inode.c:934: "handle != 0" Jul 4

Hi, I''m preparing a personal TPC-H benchmark. The goal is not to measure or optimize the database performance, but to compare ZFS to UFS in similar configurations. At the moment I''m preparing the tests at home. The test setup is as follows: . Solaris snv_37 . 2 x AMD Opteron 252 . 4 GB RAM . 2 x 80 GB ST380817AS . Oracle 10gR2 (small SGA (320m)) The disks also contain the OS

I'm constructing a raid 5 of 3 160gb sata drives. They're connected to a promise sx4 150 card, using the kernel drives (not promise's binary only drivers). the raid builds fine, as does creation of the ext3 filesystem. however, if i then run e2fsck (with the -f option since the filesystem is brand new) i get thousands of these type of errors: Inode 15461 has imagic flag set.

Dear All, I have a pair of .cpp and .def file can be compiled using VC++ and works perfectly well in S-PLUS. I wanted to do the same for R; so I followed the guidline given in "Building from a source-code library under Windows" as much as possible and manage to compile them using VC++ and call it from R. But it gives different answer from the one called from S-Plus. I know that I did

Hi Xiph.org Team. We are using opusfile library <https://github.com/xiph/opusfile> for streaming *.opus* audio in our projects. But now we have a problem with building opusfile library for android with *ndk-build*. In particular, with arm64-v8a platform: Google removed <sys/timeb.h> from android. And now building opusfile with nkd-build crashes with error "fatal error: