Date: Wed, 26 Jan 2005 15:27:30 -0500 From: Mike Tancsa <mike@sentex.net> To: Nick Pavlica <linicks@gmail.com>, freebsd-questions@freebsd.org, freebsd-performance@freebsd.org Subject: Re: FreeBSD 5.3 I/O Performance / Linux 2.6.10 | Continued Discussion Message-ID: <6.2.0.14.0.20050126150959.0466f4b8@64.7.153.2> In-Reply-To: <dc9ba044050126104731a6f5d2@mail.gmail.com> References: <dc9ba0440501241359344adce1@mail.gmail.com> <dc9ba044050126104731a6f5d2@mail.gmail.com>
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At 01:47 PM 26/01/2005, Nick Pavlica wrote: >All, > With the recent release of 4.11 I thought that I would give it a Yes, I found the same thing basically. My test box is a P4 3Ghz with 2G of RAM on a 3ware 8605 controller with 4 drives in RAID5. Virtually every test I did with iozone* showed a difference anywhere from 10-40% in favor of RELENG_4. Note, this is a 2G RAM machine hence the odd result for the 1.5G test -------Sequential Output-------- ---Sequential Input-- --Random-- -Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks--- Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU 4 1500 37673 23.7 37848 6.6 40784 7.7 97064 99.8 1174906 99.4 89867.4 99.6 4 3000 38492 24.6 38753 7.0 18396 4.1 80355 86.0 92051 9.9 605.1 1.0 5 1500 31226 23.0 34529 7.9 36444 8.9 110295 99.8 983156 92.5 27388.8 99.6 5 3000 33820 26.1 34309 8.3 13339 3.7 59807 56.8 68059 9.8 330.8 0.9 And a local postmark test. RELENG_4 and RELENG_5 pm>set size 300 100000 pm>set location /card0-a pm>set transactions 400000 pm>run Creating files...Done Performing transactions..........Done Deleting files...Done Time: 1219 seconds total 1219 seconds of transactions (328 per second) Files: 200107 created (164 per second) Creation alone: 500 files (500 per second) Mixed with transactions: 199607 files (163 per second) 199905 read (163 per second) 199384 appended (163 per second) 200107 deleted (164 per second) Deletion alone: 889 files (889 per second) Mixed with transactions: 199218 files (163 per second) Data: 12715.55 megabytes read (10.43 megabytes per second) 12728.92 megabytes written (10.44 megabytes per second) pm> pm>set size 300 100000 pm>set location /card0-a pm>set transactions 400000 pm>run Creating files...Done Performing transactions..........Done Deleting files...Done Time: 2824 seconds total 2822 seconds of transactions (141 per second) Files: 200107 created (70 per second) Creation alone: 500 files (500 per second) Mixed with transactions: 199607 files (70 per second) 199905 read (70 per second) 199384 appended (70 per second) 200107 deleted (70 per second) Deletion alone: 889 files (889 per second) Mixed with transactions: 199218 files (70 per second) Data: 12715.55 megabytes read (4.50 megabytes per second) 12728.92 megabytes written (4.51 megabytes per second) pm> *I have the iozone results in 2 .xls files if anyone wants to see them at http://www.tancsa.com/iozone-r5vsr4.zip
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