On 7/18/05, Jake Hamby <[EMAIL PROTECTED]> wrote: > > Okay, I did a more "scientific" test and uncompressed the archive first.
FIRSTLY : This is great work ! Really ! I am sooo happy to see someone actually perform and experiment and then provide data. > Test system: 2.8GHz Pentium 4, 512MB DDR333 RAM, 120GB Seagate ST3120026A > drive, OpenSolaris w/ JDS and 2 terminal windows open, bonnie++ gives read > speed as 50588K/sec, write speed as 44935K/sec. wow .. nice machine. want to try crucible on that for me ? http://www.blastwave.org/dclarke/crucible/ > Jake Hamby a name I will watch for :-) > $ bzcat ~/Downloads/kde/KDEkderequired-341.tar.bz2 >KDEkderequired-341.tar > $ sync > $ time star xf KDEkderequired-341.tar > star: 72176 blocks + 4608 bytes (total of 739086848 bytes = 721764.50k). > > real 2m53.636s > user 0m1.280s > sys 0m32.205s > $ rm -r KDEkderequired-341 > $ sync > $ time star xf KDEkderequired-341.tar > star: 72176 blocks + 4608 bytes (total of 739086848 bytes = 721764.50k). > > real 2m52.759s > user 0m1.270s > sys 0m32.265s faster slighly. could be system noise affecting throughput however. I could read every one of your tests and come to the same conclusion that I did over two years ago. I never used anything but star ever again. I tested it with millions and millions of files on a SAN/NAS multipath storage config and this is where I discovered the beauty of star. Late at night in the server room at a telcom that had some 24,000 users email accounts on a big email server cluster. Years of data. In maildir format. I had to move the /mail directory contents to a new storage array config and I needed something that would move these millions of files fast. I tried Sun tar and I tried cpio and I even tried ufsdump piped into ufsrestore. With throughput estimates in hand after the first 30 minutes I knew that I was dead in the water if I wanted this system up by 07:00AM. It was star ( whatever version in 2003 ) that saturated the channels and moved everything with the file metadata in blazing fast record time. It was _stunningly_ faster than anything else. After watching it toss around many gig of millions of files like that with many threads running simultaneously I never used anything else ever again. And I never had a problem either. Dennis Clarke Director and Admin for blastwave.org [EMAIL PROTECTED] _______________________________________________ opensolaris-discuss mailing list opensolaris-discuss@opensolaris.org
