Re: Tunning Freebsd for clustering
Ok gays here is the configuration of mounts: Centos: /dev/VolGroup00/LogVol00 / ext3defaults1 1 LABEL=/boot /boot ext3defaults1 2 none/dev/ptsdevpts gid=5,mode=620 0 0 none/dev/shmtmpfs defaults0 0 none/proc procdefaults0 0 none/syssysfs defaults0 0 /dev/VolGroup00/LogVol01 swapswapdefaults0 0 192.168.0.254:/home/alumnos /home/alumnosnfs defaults0 0 hdparm -tT /dev/sda /dev/sda: Timing cached reads: 12260 MB in 2.00 seconds = 6130.93 MB/sec Timing buffered disk reads: 174 MB in 3.00 seconds = 57.95 MB/sec FBSD 6.2: /dev/ad0s1b noneswapsw 0 0 /dev/ad0s1a / ufs rw 1 1 /dev/ad0s1e /tmpufs rw 2 2 /dev/ad0s1f /usrufs rw 2 2 /dev/ad0s1d /varufs rw 2 2 192.168.0.254:/home/profesores /home/profesores nfsrw 0 0 192.168.0.254:/home/alumnos /home/alumnos nfs rw 0 0 /dev/acd0 /cdrom cd9660 ro,noauto 0 0 diskinfo -t /dev/ad0 /dev/ad0 512 # sectorsize 16469620# mediasize in bytes (153G) 321672960 # mediasize in sectors 319120 # Cylinders according to firmware. 16 # Heads according to firmware. 63 # Sectors according to firmware. Seek times: Full stroke: 250 iter in 5.309058 sec = 21.236 msec Half stroke: 250 iter in 3.716832 sec = 14.867 msec Quarter stroke: 500 iter in 6.108698 sec = 12.217 msec Short forward:400 iter in 3.142779 sec =7.857 msec Short backward: 400 iter in 2.694669 sec =6.737 msec Seq outer: 2048 iter in 0.180814 sec =0.088 msec Seq inner: 2048 iter in 0.203852 sec =0.100 msec Transfer rates: outside: 102400 kbytes in 1.707093 sec =59985 kbytes/sec middle:102400 kbytes in 1.873011 sec =54671 kbytes/sec inside:102400 kbytes in 3.016051 sec =33952 kbytes/sec ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Tunning Freebsd for clustering
Wojciech Puchar wrote: machine1# scp big_file machine2:/tmp Centos: 60 - 65 MB/s FBSD : 52 - 54 MB/s scp encrypts data. everything may depend of ssh version and configuration. use rcp Or better yet, make your own network client/server program for testing. -Garrett ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Tunning Freebsd for clustering
Hi everybody: I recently work with mpi on FBSD 6.2 and Centos 4.4 on the same hardware. 2 Woodcrest dual core 3Ghz 2 GB RAM. 150 GB SATA disc. etc, etc. My tests, about network and hard disk transfers, say Centos is faster than FBSD. My questions are, how can tunning FBSD to upgrade the performance for clustering?. And why Centos do have better performance?. NOTE: The two tests on the fbsd was better are floating point operations and recursitivity, i was impresed with a better managing of it. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Tunning Freebsd for clustering
On Thu, 30 Aug 2007, Emanuel Marufo wrote: Hi everybody: I recently work with mpi on FBSD 6.2 and Centos 4.4 on the same hardware. 2 Woodcrest dual core 3Ghz 2 GB RAM. 150 GB SATA disc. etc, etc. My tests, about network and hard disk transfers, say Centos is faster than FBSD. My questions are, how can tunning FBSD to upgrade the performance for clustering?. And why Centos do have better performance?. NOTE: The two tests on the fbsd was better are floating point operations and recursitivity, i was impresed with a better managing of it. Don't count out 7-CURRENT. It's basically frozen now awaiting release sometime within the next couple months and is much better at dealing with concurrency than 6.2, in particular if you use the ULE scheduler instead of the 4BSD scheduler. Latest copies of 7-CURRENT also include gcc 4.2.1 which is a lot better than gcc 3.4.2 with later edition processors (like the Woodcrest Xeons for instance), with dealing with larger processor caches IIRC. There may be some things though in Linux which do run faster though, but please remember that performance is a function of many different factors, and your experience may vary from others who've done experiments before you. Cheers, -Garrett ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Tunning Freebsd for clustering
2007/8/30, Hussain Ali [EMAIL PROTECTED]: What sort of clustering are you doing ? How are you testing? -- -hussain My god i forget post it. Testing hard disk transfer. machine1# scp big_file machine2:/tmp Centos: 60 - 65 MB/s FBSD : 52 - 54 MB/s Testing network. machine1#iperf -c machine2 -t 20 Centos: 941 Mb/s FBSD : 930 Mb/s And the last test, was with my own program which use a Send-Recv MPI functions only. One more time Centos was faster, but i have no results at the moment. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Tunning Freebsd for clustering
machine1# scp big_file machine2:/tmp Centos: 60 - 65 MB/s FBSD : 52 - 54 MB/s scp encrypts data. everything may depend of ssh version and configuration. use rcp ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
