bsdinstaller
Hi, in this new freebsd installer (bsdinstall) can I have only the ssys extracted? Can I delete all src directories after install, just leaving sys intact? Is it some dependency between the sources? Why the default now its extracting all? Thiago ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to freebsd-hackers-unsubscr...@freebsd.org
Re: Mount_nfs question
Maybe you can use showmount -a SERVER-IP, foreach server you have... Thiago 2011/5/30 Mark Saad nones...@longcount.org: On Mon, May 30, 2011 at 8:13 PM, Rick Macklem rmack...@uoguelph.ca wrote: Hello All So I am stumped on this one. I want to know what the IP of each nfs server that is providing each nfs export. I am running 7.4-RELEASE When I run mount -t nfs I see something like this VIP-01:/export/source on /mnt/src VIP-02:/export/target on /mnt/target VIP-01:/export/logs on /mnt/logs VIP-02:/export/package on /mnt/pkg The issue is I use a load balanced nfs server , from isilon. So VIP-01 could be any one of a group of IPs . I am trying to track down a network congestion issue and I cant find a way to match the output of lsof , and netstat to the output of mount -t nfs . Does anyone have any ideas how I could track this down , is there a way to run mount and have it show the IP and not the name of the source server ? Just fire up wireshark (or tcpdump) and watch the traffic. tcpdump doesn't know much about NFS, but if al you want are the IP#s, it'll do. But, no, mount won't tell you more than what the argument looked like. rick Wireshark seams like using a tank to swap a fly. -- mark saad | nones...@longcount.org ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to freebsd-hackers-unsubscr...@freebsd.org ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to freebsd-hackers-unsubscr...@freebsd.org
usertime and systime
Hi, without procfs, there is a way to get usertime and systime from a running process? Thiago ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to freebsd-hackers-unsubscr...@freebsd.org
Re: usertime and systime
Hi, the patch worked for me, using RELENG_8_2 Very thanks! Thiago 2011/3/16 Dan Nelson dnel...@allantgroup.com: In the last episode (Mar 16), Thiago Damas said: Hi, without procfs, there is a way to get usertime and systime from a running process? Try applying the attached patch to ps. I've had it for a while but never submitted a PR. Heh. I've had it for a very long time. http://lists.freebsd.org/pipermail/freebsd-hackers/2009-March/027918.html -- Dan Nelson dnel...@allantgroup.com ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to freebsd-hackers-unsubscr...@freebsd.org
Re: Support for WD Advanced Format disks
You read: ATA 4K sector issues http://lists.freebsd.org/pipermail/freebsd-hackers/2010-March/031154.html 2010/8/28 Ilya Bakulin webmas...@kibab.com: On Sat, 28 Aug 2010 13:09:12 +0400 Ilya Bakulin webmas...@kibab.com wrote: Right now I'm running phybs -w /dev/ad7p1 Well, phybs finished. Results: kibab-desktop# ./phybs -w /dev/ad7p1 count size offset step msec tps kBps 131072 1024 0 4096 3098125 0 42 131072 1024 512 4096 3100047 0 42 65536 2048 0 8192 1505809 0 87 65536 2048 512 8192 1505179 0 87 65536 2048 1024 8192 1506127 0 87 32768 4096 0 16384 1522343 1 86 32768 4096 512 16384 1521017 1 86 32768 4096 1024 16384 1523748 1 86 32768 4096 2048 16384 1522853 1 86 16384 8192 0 32768 890911 3 147 16384 8192 512 32768 892026 3 146 16384 8192 1024 32768 890699 3 147 16384 8192 2048 32768 891862 3 146 16384 8192 4096 32768 889903 3 147 Obviously 34-sectors offset is bad for phybs. Write requests are NEVER get aligned. I have recreated partition as follows: kibab-desktop# gpart delete -i 1 ad7 ad7p1 deleted kibab-desktop# gpart add -t freebsd-ufs -s 10G -b 63 ad7 ad7p1 added kibab-desktop# gpart show ad7 = 34 2930277101 ad7 GPT (1.4T) 34 29 - free - (15K) 63 20971520 1 freebsd-ufs (10G) 20971583 2909305552 - free - (1.4T) So, we have ad7p1 which is still misaligned, but if write request will start at offset=512, it will be aligned properly. Let's test as follows: kibab-desktop# ./phybs -l 4096 -w /dev/ad7p1 count size offset step msec tps kBps 32768 4096 0 16384 1520609 1 86 32768 4096 512 16384 17898 151 7323 32768 4096 1024 16384 1524899 1 85 :-) Aligned writes are 86 times faster than misaligned!!! -- Regards, Ilya Bakulin http://kibab.com xmpp://kibab...@jabber.ru ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to freebsd-hackers-unsubscr...@freebsd.org
strange zfs behavior
Hi, I'm testing some configuration using ZFS with 4 disks seagate: ad4: 953869MB Seagate ST31000528AS CC38 at ata2-master UDMA100 SATA 3Gb/s ad6: 953869MB Seagate ST31000528AS CC38 at ata3-master UDMA100 SATA 3Gb/s ad8: 953869MB Seagate ST31000528AS CC38 at ata4-master UDMA100 SATA 3Gb/s ad10: 953869MB Seagate ST31000528AS CC38 at ata5-master UDMA100 SATA 3Gb/s The system its amd64 8.1-BETA1 (tested too in 8.0-p3). My only tuning its (in /boot/loader.conf): vm.kmem_size_scale=2 vfs.zfs.txg.timeout=5 The machine has 4Gb RAM, and SATA controller its LSI53C1020/1030 (adaptec 1020) At first, I used the following: zpool create -f -m /storage tank mirror /dev/ad4 /dev/ad6 mirror /dev/ad8 /dev/ad10 and I noticed ad10 slower than others (svc_t) svc_t: http://i48.tinypic.com/34s1ndd.gif http://i45.tinypic.com/m9x6ra.gif wait: http://i47.tinypic.com/2uqksv5.gif http://i49.tinypic.com/200qza9.gif Now, I swapped the configuration: zpool create -f -m /storage tank mirror /dev/ad10 /dev/ad8 mirror /dev/ad6 /dev/ad4 and now I have ad4 slower than others svc_t: http://i49.tinypic.com/2uxtqww.gif http://i50.tinypic.com/10dbcix.gif wait: http://i46.tinypic.com/331f5lf.gif http://i46.tinypic.com/2lc7c5k.gif Will always the last disk in zfs configuration perform like that? Any comments? ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to freebsd-hackers-unsubscr...@freebsd.org
Re: ATA 4K sector issues
I tested now with 1Mb (2048 blocks) at the begining of disk, and same behaviour: slow write speed and high disk latency. On Wed, Mar 17, 2010 at 6:17 PM, Thiago Damas tda...@gmail.com wrote: I'll try tomorrow more zfs tests, with 1M alignment on begining of disk. But I also remember that zfs block size its 128k, but metadata can be of dynamic size. And we can use compressed files too. There is a sysctl, md_compress, that I turned out in my tests, but not working as expected. Why using gnop -S 4096 works well? Thiago ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to freebsd-hackers-unsubscr...@freebsd.org
Re: ATA 4K sector issues
Slow performance,slow write speed, high delay per operation (gstat, ms/w) above 400ms was common, with peaks of 3000ms per write). Tested on two different machines. Disks WD10EARS in single disk and mirror configurations. Thiago 2010/3/17 Dag-Erling Smørgrav d...@des.no Thiago Damas tda...@gmail.com writes: I had problem with ZFS. What kind of problem? DES -- Dag-Erling Smørgrav - d...@des.no ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to freebsd-hackers-unsubscr...@freebsd.org
Re: ATA 4K sector issues
I had problem with ZFS.
With gnop -S 4096, it works well on /dev/ad{a}X.nop; but I decided to not
use those disks.
2010/3/17 Mohacsi Janos moha...@niif.hu
On Wed, 17 Mar 2010, Dag-Erling Sm?rgrav wrote:
Mohacsi Janos moha...@niif.hu writes:
What is the situation with ATA 4K dirves in FreeBSD? Are there
any support for them in fdisk or disklabel?
Hmm, didn't we discuss this already? All we need to do is change the
defaults in fdisk so it rounds partition offsets and sizes to a multiple
of 8 sectors (or 16 for future-proofing) instead of aligning them with
fictitious cylinder boundaries. Bsdlabel, as disklabel is properly
known, already DTRT: by default, the first partition starts at offset
16. Just make sure you specify sizes that are divisible by 8 or 16
blocks (not an issue if you use the M or G suffixes). Sysinstall
operates in megabytes.
Thanks for the information.
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Re: ATA 4K sector issues
I tried with gpart, gpt scheme, begining in all block alignments possible,
34, 35, 36, 37, 38, 39 etc
Even 64
gpart create -s gpt ad4
gpart add -s 64 -t freebsd-zfs ad4
With UFS, I previouly did some tests (in portuguese):
Particao sem alinhar inicio
=34 1953525101 ad4 GPT (932G)
34 19535251011 freebsd-ufs (932G)
newfs -U (padrao -f 2048 -b 16384)
# time tar xfj
/install/releases/i386/8.0-RELEASE/8.0-RELEASE/ports/ports.tgz
2.342u 5.013s 20:35.65 0.5%64+1091k 6623+2734io 0pf+0w
newfs -U -f 4096 -b 32768
# time tar xfj
/install/releases/i386/8.0-RELEASE/8.0-RELEASE/ports/ports.tgz
2.590u 5.263s 22:06.32 0.5%63+1087k 10911+1676io 0pf+0w
Particao alinhada em multiplos de 4096 bytes (blocos logicos de 512
bytes, entao, multiplo de 8 blocos)
=34 1953525101 ad4 GPT (932G)
34 30 - free - (15K)
64 19535250711 freebsd-ufs (932G)
newfs -U (padrao -f 2048 -b 16384)
# time tar xfj
/install/releases/i386/8.0-RELEASE/8.0-RELEASE/ports/ports.tgz
2.392u 5.000s 10:24.15 1.1%64+1095k 8375+2735io 0pf+0w
newfs -U -f 4096 -b 32768
# time tar xfj
/install/releases/i386/8.0-RELEASE/8.0-RELEASE/ports/ports.tgz
2.547u 5.567s 1:25.50 9.4%64+1088k 11880+1755io 0pf+0w
On Wed, Mar 17, 2010 at 3:12 PM, Olivier Smedts oliv...@gid0.org wrote:
2010/3/17 Thiago Damas tda...@gmail.com:
I had problem with ZFS.
With gnop -S 4096, it works well on /dev/ad{a}X.nop; but I decided to
not
use those disks.
So maybe this was not a ZFS problem but a partition misalignment problem ?
On a properly aligned partition with a physical sector size of 4KB and
a logical sector size of 512 bytes, will ZFS try to use blocksizes of
less than 4KB ? Blocksize in ZFS seems to be dynamic (at least when
not told to use a fixed blocksize), but I didn't see somewhere in the
manpage or Sun's website which minimum blocksize ZFS would use for
small files, and if there is a lower limit on blocksizes to use.
2010/3/17 Mohacsi Janos moha...@niif.hu
On Wed, 17 Mar 2010, Dag-Erling Sm?rgrav wrote:
Mohacsi Janos moha...@niif.hu writes:
What is the situation with ATA 4K dirves in FreeBSD? Are there
any support for them in fdisk or disklabel?
Hmm, didn't we discuss this already? All we need to do is change the
defaults in fdisk so it rounds partition offsets and sizes to a
multiple
of 8 sectors (or 16 for future-proofing) instead of aligning them with
fictitious cylinder boundaries. Bsdlabel, as disklabel is properly
known, already DTRT: by default, the first partition starts at offset
16. Just make sure you specify sizes that are divisible by 8 or 16
blocks (not an issue if you use the M or G suffixes). Sysinstall
operates in megabytes.
Thanks for the information.
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--
Olivier Smedts _
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e-mail: oliv...@gid0.org- against HTML email vCards X
www: http://www.gid0.org- against proprietary attachments / \
Il y a seulement 10 sortes de gens dans le monde :
ceux qui comprennent le binaire,
et ceux qui ne le comprennent pas.
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Re: ATA 4K sector issues
With UFS, I previouly did some tests (in portuguese): Partition without begin aligned: =34 1953525101 ad4 GPT (932G) 34 19535251011 freebsd-ufs (932G) newfs -U (default -f 2048 -b 16384) # time tar xfj /install/releases/i386/8.0-RELEASE/8.0-RELEASE/ports/ports.tgz 2.342u 5.013s 20:35.65 0.5%64+1091k 6623+2734io 0pf+0w newfs -U -f 4096 -b 32768 # time tar xfj /install/releases/i386/8.0-RELEASE/8.0-RELEASE/ports/ports.tgz 2.590u 5.263s 22:06.32 0.5%63+1087k 10911+1676io 0pf+0w Partition aligned on 4k boundaries =34 1953525101 ad4 GPT (932G) 34 30 - free - (15K) 64 19535250711 freebsd-ufs (932G) newfs -U (default -f 2048 -b 16384) # time tar xfj /install/releases/i386/8.0-RELEASE/8.0-RELEASE/ports/ports.tgz 2.392u 5.000s 10:24.15 1.1%64+1095k 8375+2735io 0pf+0w newfs -U -f 4096 -b 32768 # time tar xfj /install/releases/i386/8.0-RELEASE/8.0-RELEASE/ports/ports.tgz 2.547u 5.567s 1:25.50 9.4%64+1088k 11880+1755io 0pf+0w Aligning the partition, and ajusting the block/fragment size, I went from 22minutes to 1m25s. But, I tried every combination possible with ZFS, and always get slow performance (something like 2, 3 MB/s write speed) 2010/3/17 Dag-Erling Smørgrav d...@des.no Thiago Damas tda...@gmail.com writes: With UFS, I previouly did some tests (in portuguese): Some commentary would be nice. DES -- Dag-Erling Smørgrav - d...@des.no ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to freebsd-hackers-unsubscr...@freebsd.org
Re: ATA 4K sector issues
I'll try tomorrow more zfs tests, with 1M alignment on begining of disk. But I also remember that zfs block size its 128k, but metadata can be of dynamic size. And we can use compressed files too. There is a sysctl, md_compress, that I turned out in my tests, but not working as expected. Why using gnop -S 4096 works well? Thiago ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to freebsd-hackers-unsubscr...@freebsd.org
Re: ATA 4K sector issues
Waste of disk space. With 2K frag size, a file of 1k will use a minimum of 2K, wasting 1k. With 4k frag size it will waste 3k. 2010/3/17, Andrew Stesin ste...@gmail.com: 2010/3/17 Matthew Dillon dil...@apollo.backplane.com: you absolutely must use a 4K fragment size (32K block size) and an aligned partition when using UFS with 4K physical sector drives. Sorry for my ignorance, but what's wrong with making this the default setting for newfs regardless of whatever the drive is? Thanks, Andrew ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to freebsd-hackers-unsubscr...@freebsd.org ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to freebsd-hackers-unsubscr...@freebsd.org
Re: encrypted executables
And if you make a wrapper, and execute like a shell script: #!/usr/local/bin/mysecyritywrapper ...encryted code goes where... In this way. it'll be hard to use truss, ktrace, strace etc... []s On Feb 19, 2008 1:09 AM, Giorgos Keramidas [EMAIL PROTECTED] wrote: On 2008-02-18 19:54, Jerry Toung [EMAIL PROTECTED] wrote: On Feb 18, 2008 5:39 PM, Dimitry Andric [EMAIL PROTECTED] wrote: On 2008-02-19 02:18, Jerry Toung wrote: anybody knows of a tool to encrypt executables under FreeBSD? may be from the ports? I am not talking about simple file encryption. Can you elaborate on what you *are* talking about then? Some security-by-obscurity scheme, perhaps? :) I need to encrypt elf binaries. I'd like to make it harder for the bad guy to reverse engineer my app. You know about truss/ktrace/strace already, right? It may be moot to encrypt the ELF binary, if the `bad guy' can access the running image of the process *after* it has been decrypted to execute. ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED] ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: A handy utility (at least for me)
It can be: cd /usr/ports rm -rf */*/work []s On 8/26/06, Rick C. Petty [EMAIL PROTECTED] wrote: On Sat, Aug 26, 2006 at 07:19:06PM -0300, Mario Lobo wrote: My /usr/ports directory was occuping 24 gigs, of which 20 was just from the 'work' directories ! Removing them one by one was a pain so I wrote this little utility to wipe them off. I find that the following command works just fine for me: find /usr/ports -type d -name work -prune -print -delete =) -- Rick C. Petty ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED] ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: odd behavior with geom - gmirror - read/write simultaneously
Hi, same problem: * in shell(1): # dd if=/dev/zero of=/var/tmp/test bs=4m * after some time (=~ 20seconds), in shell(2) # dd if=/var/tmp/test bs=4m of=/dev/null gstat shows no writes again, only reads; hitting ^C in shell(1), it hangs until the dd in shell(2) finishes. Using diferents files (after rebooting the machine to prevent some cache): In: same problem: * in shell(1): # dd if=/dev/zero of=/var/tmp/test bs=4m * after some time (=~ 20seconds), in shell(2) # dd if=/var/tmp/test bs=4m of=/dev/null gstat shows no writes again, only reads; hitting ^C in shell(1), it hangs until the dd in shell(2) finishes. Using diferents files (after rebooting the machine to prevent some cache), I found the inverse situation: * in shell(1): # dd if=/dev/zero of=/var/tmp/test2 bs=4m * in shell(2): # dd if=/var/tmp/test of=/dev/null bs=4m gstat shows the following: # gstat dT: 0.501 flag_I 50us sizeof 240 i -1 L(q) ops/sr/s kBps ms/rw/s kBps ms/w %busy Name 11357 0 00.0357 45737 14.2 99.7| ad0 11357 0 00.0357 45737 14.3 99.7| ad0s1 0 0 0 00.0 0 00.00.0| ad2 0 0 0 00.0 0 00.00.0| ad3 0 0 0 00.0 0 00.00.0| ad0s1a 0 0 0 00.0 0 00.00.0| ad0s1b 0 0 0 00.0 0 00.00.0| ad0s1c 0 0 0 00.0 0 00.00.0| ad0s1d 0 0 0 00.0 0 00.00.0| ad0s1e 11357 0 00.0357 45737 15.1 99.7| ad0s1f 0 0 0 00.0 0 00.00.0| ad2s1 0 0 0 00.0 0 00.00.0| mirror/home0 0 0 0 00.0 0 00.00.0| ad3s1 0 0 0 00.0 0 00.00.0| mirror/home0s1 0 0 0 00.0 0 00.00.0| mirror/home0s1c Hitting ^C in shell(2), it hangs until I cancel the dd of shell(1), and shows the following: # dd if=/var/tmp/test of=/dev/null bs=4m ^C0+0 records in 0+0 records out 0 bytes transferred in 23.318283 secs (0 bytes/sec) In: When I try your test on my mirror gstat shows read and write activity, but the reading dd quits very soon, because reading appears to be faster than writing. try waiting a little more before execute the dd command. After those tests, the problem isnt relationated with GEOM, I think. What can I do now? Did you try the parallel dd commands on another partition which is not gmirror'd? For example: dd if=/dev/ad0 of=/var/tmp/test.data bs=4m dd if=/var/tmp/test.data bs=4m of=/dev/null So you can be sure that it is a gmirror issue. When I try your test on my mirror gstat shows read and write activity, but the reading dd quits very soon, because reading appears to be faster than writing. I would suggest that you write to one file and read from another file when you do the parallel test. Just a hint: for the write test you should better use /dev/zero instead of /dev/ad0 - ``dd if=/dev/zero of=/home/test.data bs=4m'' for obvious reasons. -- Vasil Dimov [EMAIL PROTECTED] Testing can show the presence of bugs, but not their absence. -- Edsger W. Dijkstra ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: odd behavior with geom - gmirror - read/write simultaneously
I made a similar test with FreeBSD 4.11, and the results are OK. This problem didnt happen. On 4/6/06, Thiago Damas [EMAIL PROTECTED] wrote: Hi, same problem: * in shell(1): # dd if=/dev/zero of=/var/tmp/test bs=4m * after some time (=~ 20seconds), in shell(2) # dd if=/var/tmp/test bs=4m of=/dev/null gstat shows no writes again, only reads; hitting ^C in shell(1), it hangs until the dd in shell(2) finishes. Using diferents files (after rebooting the machine to prevent some cache): In: same problem: * in shell(1): # dd if=/dev/zero of=/var/tmp/test bs=4m * after some time (=~ 20seconds), in shell(2) # dd if=/var/tmp/test bs=4m of=/dev/null gstat shows no writes again, only reads; hitting ^C in shell(1), it hangs until the dd in shell(2) finishes. Using diferents files (after rebooting the machine to prevent some cache), I found the inverse situation: * in shell(1): # dd if=/dev/zero of=/var/tmp/test2 bs=4m * in shell(2): # dd if=/var/tmp/test of=/dev/null bs=4m gstat shows the following: # gstat dT: 0.501 flag_I 50us sizeof 240 i -1 L(q) ops/sr/s kBps ms/rw/s kBps ms/w %busy Name 11357 0 00.0357 45737 14.2 99.7| ad0 11357 0 00.0357 45737 14.3 99.7| ad0s1 0 0 0 00.0 0 00.00.0| ad2 0 0 0 00.0 0 00.00.0| ad3 0 0 0 00.0 0 00.00.0| ad0s1a 0 0 0 00.0 0 00.00.0| ad0s1b 0 0 0 00.0 0 00.00.0| ad0s1c 0 0 0 00.0 0 00.00.0| ad0s1d 0 0 0 00.0 0 00.00.0| ad0s1e 11357 0 00.0357 45737 15.1 99.7| ad0s1f 0 0 0 00.0 0 00.00.0| ad2s1 0 0 0 00.0 0 00.00.0| mirror/home0 0 0 0 00.0 0 00.00.0| ad3s1 0 0 0 00.0 0 00.00.0| mirror/home0s1 0 0 0 00.0 0 00.00.0| mirror/home0s1c Hitting ^C in shell(2), it hangs until I cancel the dd of shell(1), and shows the following: # dd if=/var/tmp/test of=/dev/null bs=4m ^C0+0 records in 0+0 records out 0 bytes transferred in 23.318283 secs (0 bytes/sec) In: When I try your test on my mirror gstat shows read and write activity, but the reading dd quits very soon, because reading appears to be faster than writing. try waiting a little more before execute the dd command. After those tests, the problem isnt relationated with GEOM, I think. What can I do now? Did you try the parallel dd commands on another partition which is not gmirror'd? For example: dd if=/dev/ad0 of=/var/tmp/test.data bs=4m dd if=/var/tmp/test.data bs=4m of=/dev/null So you can be sure that it is a gmirror issue. When I try your test on my mirror gstat shows read and write activity, but the reading dd quits very soon, because reading appears to be faster than writing. I would suggest that you write to one file and read from another file when you do the parallel test. Just a hint: for the write test you should better use /dev/zero instead of /dev/ad0 - ``dd if=/dev/zero of=/home/test.data bs=4m'' for obvious reasons. -- Vasil Dimov [EMAIL PROTECTED] Testing can show the presence of bugs, but not their absence. -- Edsger W. Dijkstra ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
odd behavior with geom - gmirror - read/write simultaneously
Hi, I'm having a odd behavior while using geom_mirror. I have the following situation: - RAID1 with 2 SATA disks # gmirror status NameStatus Components mirror/home0 COMPLETE ad2 ad3 - home0 as /home # df -h Filesystem SizeUsed Avail Capacity Mounted on /dev/ad0s1a 1.9G 74M1.7G 4%/ devfs 1.0K1.0K 0B 100%/dev /dev/ad0s1d 989M 16K910M 0%/tmp /dev/ad0s1e 7.7G1.9G5.2G27%/usr /dev/ad0s1f 58G139M 53G 0%/var /dev/mirror/home0s1c226G7.4G200G 4%/home I was testing the read/write speed on /home, with: # dd if=/dev/ad0 of=/home/test.data bs=4m While running this, gstat shows me what I wanted: # gstat L(q) ops/sr/s kBps ms/rw/s kBps ms/w %busy Name 0230230 293831.9 0 00.0 42.8| ad0 0 0 0 00.0 0 00.00.0| ad0s1 9192 0 00.0192 24529 21.0 65.3| ad2 7196 0 00.0196 25040 16.6 65.4| ad3 0 0 0 00.0 0 00.00.0| ad0s1a 0 0 0 00.0 0 00.00.0| ad0s1b 0 0 0 00.0 0 00.00.0| ad0s1c 0 0 0 00.0 0 00.00.0| ad0s1d 0 0 0 00.0 0 00.00.0| ad0s1e 0 0 0 00.0 0 00.00.0| ad0s1f 0 0 0 00.0 0 00.00.0| ad2s1 9192 0 00.0192 24529 21.2 65.4| mirror/home0 0 0 0 00.0 0 00.00.0| ad3s1 9192 0 00.0192 24529 21.2 65.4| mirror/home0s1 9192 0 00.0192 24529 22.0 66.6| mirror/home0s1c After that, I test the read speed: # dd if=/home/test.data bs=4m of=/dev/null # gstat dT: 0.501 flag_I 50us sizeof 240 i -1 L(q) ops/sr/s kBps ms/rw/s kBps ms/w %busy Name 0 0 0 00.0 0 00.00.0| ad0 0 0 0 00.0 0 00.00.0| ad0s1 1120120 153293.7 0 00.0 44.9| ad2 0122122 155843.5 0 00.0 43.1| ad3 0 0 0 00.0 0 00.00.0| ad0s1a 0 0 0 00.0 0 00.00.0| ad0s1b 0 0 0 00.0 0 00.00.0| ad0s1c 0 0 0 00.0 0 00.00.0| ad0s1d 0 0 0 00.0 0 00.00.0| ad0s1e 0 0 0 00.0 0 00.00.0| ad0s1f 0 0 0 00.0 0 00.00.0| ad2s1 1242242 309133.7 0 00.0 88.4| mirror/home0 0 0 0 00.0 0 00.00.0| ad3s1 1242242 309133.7 0 00.0 88.7| mirror/home0s1 1242242 309133.7 0 00.0 90.0| mirror/home0s1c And it shows again what was supposed to. Now, I test read/write simultaneously: In on shell (1): # dd if=/dev/ad0 of=/home/test.data bs=4m After some time, in another shell(2) # dd if=/home/test.data bs=4m of=/dev/null And gstat shows me the following: # gstat dT: 0.501 flag_I 50us sizeof 240 i -1 L(q) ops/sr/s kBps ms/rw/s kBps ms/w %busy Name 0 0 0 00.0 0 00.00.0| ad0 0 0 0 00.0 0 00.00.0| ad0s1 0158158 201833.0 0 00.0 47.6| ad2 1158158 201832.5 0 00.0 39.1| ad3 0 0 0 00.0 0 00.00.0| ad0s1a 0 0 0 00.0 0 00.00.0| ad0s1b 0 0 0 00.0 0 00.00.0| ad0s1c 0 0 0 00.0 0 00.00.0| ad0s1d 0 0 0 00.0 0 00.00.0| ad0s1e 0 0 0 00.0 0 00.00.0| ad0s1f 0 0 0 00.0 0 00.00.0| ad2s1 1315315 403672.8 0 00.0 87.4| mirror/home0 0 0 0 00.0 0 00.00.0| ad3s1 1315315 403672.8 0 00.0 87.8| mirror/home0s1 1315315 403672.8 0 00.0 89.4| mirror/home0s1c I'm having NO writes in home0; even hitting ^C in shell(1) hangs, until I cancel the dd command in shell(2). I think its happening some problem with geom code . Can someone verify this? I using 6.1 PRERELEASE, with GENERIC kernel. --- Thiago ___ freebsd-hackers@freebsd.org
Re: if_bridge hangs ifconfig
How can I patch my system, 6.0-RELEASE for only this bug? I want to minimize the downtime? Its possible? best regards, Thiago 2006/1/26, Andrew Thompson [EMAIL PROTECTED]: On Thu, Jan 26, 2006 at 02:49:54PM -0200, Thiago Damas wrote: I'm having some problems using if_bridge, in FreeBSD 6.0 RELEASE. I have the following situation: When using the command ifconfig bridge0 deletem vr0, its hangs, and sometimes show the error: vr0: refusing to decrement non-positive refcount 0for interface flag 256 This has been fixed in 6-STABLE and will work in the upcomming 6.1 release, see the 2005/11/16 entry in http://www.freebsd.org/releases/6.0R/errata.html I would advise upgrading to RELENG_6. regards, Andrew ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
