similar to: Why is my kernel eating my memory

Hey all - Just a quick one... Is there any plan to update the mdb ::memstat dcmd to present ZFS buffers as part of the summary? At present, we get something like: > ::memstat Page Summary Pages MB %Tot ------------ ---------------- ---------------- ---- Kernel 28859 112 13% Anon 34230

I am looking for Dtrace scripts that can be used to collect data during performance tests. I am especially interested in IO but CPU, memory, threads, etc are needed as well. Thanks, Dave

G''Day Folks, Check out this DTrace script, # ./swapinfo.d RAM _______Total 511 Mb RAM Unusable 8 Mb RAM Kernel 96 Mb RAM Locked 0 Mb RAM Used 318 Mb RAM Avail 88 Mb Disk _______Total 1023 Mb Disk Used 9 Mb Disk Avail 1014 Mb Swap _______Total 1367 Mb Swap Used 327

Hello freebsd-stable, I have 5.5-PRERELEASE server in production, booting from ad0s1: # BLOCKSIZE=512 swapinfo Device 512-blocks Used Avail Capacity /dev/ad0s1b 2097152 52872 2044280 3% /dev/ad1s1b 2097152 51952 2045200 2% Total 4194304 104824 4089480 2% # bsdlabel ad0s1 | fgrep b: b: 2097152 0 swap

Running an mmap-intensive workload on ZFS on a X4500, Solaris 10 11/06 (update 3). All file IO is mmap(file), read memory segment, unmap, close. Tweaked the arc size down via mdb to 1GB. I used that value because c_min was also 1GB, and I was not sure if c_max could be larger than c_min....Anyway, I set c_max to 1GB. After a workload run....: > arc::print -tad { . . . ffffffffc02e29e8

Hello. I have a Solaris 11/11 x86 box (which I migrated from SolEx 11/10 a couple of weeks ago). Without no obvious reason (at least for me), after an uptime of 1 to 2 days (observed 3 times now) Solaris sets arc_no_grow to 1 and then never sets it back to 0. ARC is being shrunk to less than 1 GB -- needless to say that performance is terrible. There is not much load on this system. Memory

Hello, I'm wondering about closing some information leaks in FreeBSD jails from the "outside world". Not that critical (depends on the application), but a simple user, with restricted devfs in the jail (devfsrules_jail for example from /etc/defaults/devfs.rules) can figure out the following: - network interfaces related data, via ifconfig, which contains everything, but the

We have a 32 GB RAM server running about 14 zones. There are multiple databases, application servers, web servers, and ftp servers running in the various zones. I understand that using ZFS will increase kernel memory usage, however I am a bit concerned at this point. root at servername:~/zonecfg #mdb -k Loading modules: [ unix krtld genunix specfs dtrace uppc pcplusmp ufs md mpt ip indmux ptm

Hello, ZFS is behaving strange on a OSOL laptop, your thoughts are welcome. I am running OSOL on my laptop, currently b124 and i found that the performance of ZFS is not optimal in all situations. If i check the how much space the package cache for pkg(1) uses, it takes a bit longer on this host than on comparable machine to which i transferred all the data. user at host:/var/pkg$ time

Hello. We''re currently using a Sun Blade1000 (2x750MHz, 1G ram, 2x160MB/s mpt scsi buses, skge GigE network) as a NFS backend with ZFS for distribution of free software like Debian (cdimage.debian.org, ftp.se.debian.org) and have run into some performance issues. We are running SX snv_48 and have run with a raidz2 with 7x300G for a while now, just added another 7x300G raidz2 today but

Hi, I'd like to reduce the size of the samba binaries. smbd for instance is about 1.5 meg, which is way to much if you ask me. Is there a way to create smaller binaries, maybe by compiling differently? thanx, Dennis ===== __________________________________________________ Do You Yahoo!? Yahoo! Greetings - Send FREE e-cards for every occasion! http://greetings.yahoo.com

HI, T5220, S10U4 + patches mdb -k > ::memstat While above is working (takes some time, ideally ::memstat -n 4 to use 4 threads could be useful) mpstat 1 shows: CPU minf mjf xcal intr ithr csw icsw migr smtx srw syscl usr sys wt idl 48 0 0 1922112 9 0 0 8 0 0 0 15254 6 94 0 0 So about 2mln xcalls per second. Let''s check with dtrace:

> > Offlist/OT - Sheer guess, straight out of my parts - maybe a cronjob to > rebuild the locate db or something similar is hammering it once a week? In the problem condition, there appears to be very little going on on the system. eg., root at server5:/tmp# /usr/local/bin/top last pid: 3828; load avg: 4.29, 3.95, 3.84; up 6+23:11:4407:12:47 79 processes: 78 sleeping, 1 on

We have a serious performance problem on our server. Here is some data: <pre> > ::memstat Page Summary Pages MB %Tot ------------ ---------------- ---------------- ---- Kernel 1133252 4426 31% Anon 1956988 7644 53% Exec and libs 31104 121 1% Page cache

Hi, Can I use DTrace to determine memory status? 1.Total Physical Memory, Used Memory. 2.Total Swap Space and Used Swap Space. I did find few DTrace scripts but had too much in them and I am unable to chop off unwanted lines of code due to lack of knowledge. It will be very helpful if some one can share the piece of code that serves my purpose as mentioned above. Regards, Ramesh. Ramesh

I''ve been testing ZFS since it came out on b27 and this week I BFUed to b30. I''ve seen two problems, one I''ll call minor and the other major. The hardware is a Dell PowerEdge 2600 with 2 3.2GHz Xeons, 2GB memory and a perc3 controller. I have created a filesystem for over 1000 users on it and take hourly snapshots, which destroy the one from 24 hours ago, except the

Author: cth Repository: /hg/zfs-crypto/gate Revision: 2fb20c1b1ed012576c35a158da4d3f7481234b7f Log message: 6310627 mdb devinfo dcmd should know about DN_GLDV3_DRIVER flag Files: update: usr/src/cmd/mdb/common/modules/genunix/devinfo.c

Hi, Somehow[TM] an installation of 4.11 to ad0s3 managed to wipe out my existing disklabel for 7.0 on ad0s4. I now need to recover the disklabel to get my system to boot! There were three labels - ad0s4a: UFS, exact size unknown. Is it possible to infer this from the UFS partition size? I can mount this already, as I simply wrote an 'a' label of maximum size to the disklabel - ad0s4b:

Hello all, I have a question. Below are two ::memstat outputs about 5 days apart. The interesting thing is the "anonymous" memory shows 2GB, though the two major hogs of that memory (two MySQL instances) claim to be consuming about 6.2GB (checked via pmap). Also, it seems like the ARC keeps creeping the kernel memory over the 4GB limit I set for the ARC (zfs_arc_max). What I was also,

Does anyone out there have any thoughts on the type of load common DTrace scripts would cause on a system if run 24x7? I know "common DTrace scripts" and their underlining probe calls a vague statement. So for the lack of a common and establish set of scripts in the OS, I''ll use the most popular right for my question...the DTraceToolkit from Brendan Gregg. Which by the