Comments on: Rebench: cutting through the myths of I/O performance http://www.rethinkdb.com/blog/2009/10/rebench-cutting-through-the-myths-of-io-performance/ Just another WordPress weblog Sun, 05 Sep 2010 13:51:34 +0000 http://wordpress.org/?v=2.8.2 hourly 1 By: The Betacantrips Travelogue » Rebench: cutting through the myths of I/O performance http://www.rethinkdb.com/blog/2009/10/rebench-cutting-through-the-myths-of-io-performance/comment-page-1/#comment-10491 The Betacantrips Travelogue » Rebench: cutting through the myths of I/O performance Mon, 09 Nov 2009 23:17:53 +0000 http://www.rethinkdb.com/blog/?p=81#comment-10491 [...] Seen via Adam: an article on Rebench, a tool used to benchmark hard drive performance. [...] [...] Seen via Adam: an article on Rebench, a tool used to benchmark hard drive performance. [...]

]]> By: Log Buffer #165: a Carnival of the Vanities for DBAs « PlanetMysql.ru – информация о СУБД MySQL http://www.rethinkdb.com/blog/2009/10/rebench-cutting-through-the-myths-of-io-performance/comment-page-1/#comment-5060 Log Buffer #165: a Carnival of the Vanities for DBAs « PlanetMysql.ru – информация о СУБД MySQL Fri, 09 Oct 2009 19:11:21 +0000 http://www.rethinkdb.com/blog/?p=81#comment-5060 [...] RethinkDB Blog posts Rebench: cutting through the myths of I/O performance. “ . . . none of [the existing tools designed to test I/O performance] [...] [...] RethinkDB Blog posts Rebench: cutting through the myths of I/O performance. “ . . . none of [the existing tools designed to test I/O performance] [...]

]]> By: Log Buffer #165: a Carnival of the Vanities for DBAs | Pythian Group Blog http://www.rethinkdb.com/blog/2009/10/rebench-cutting-through-the-myths-of-io-performance/comment-page-1/#comment-5026 Log Buffer #165: a Carnival of the Vanities for DBAs | Pythian Group Blog Fri, 09 Oct 2009 16:55:40 +0000 http://www.rethinkdb.com/blog/?p=81#comment-5026 [...] RethinkDB Blog posts Rebench: cutting through the myths of I/O performance. “ . . . none of [the existing tools designed to test I/O performance] [...] [...] RethinkDB Blog posts Rebench: cutting through the myths of I/O performance. “ . . . none of [the existing tools designed to test I/O performance] [...]

]]> By: Slava http://www.rethinkdb.com/blog/2009/10/rebench-cutting-through-the-myths-of-io-performance/comment-page-1/#comment-4984 Slava Fri, 09 Oct 2009 08:18:32 +0000 http://www.rethinkdb.com/blog/?p=81#comment-4984 Andrey: great question. We don't have results yet we can publish. Meaningful results involve running many different tests (different thread count, read/write ration, drive space utilization, etc.) We're looking forward to sharing some results in the near future! Andrey: great question. We don’t have results yet we can publish. Meaningful results involve running many different tests (different thread count, read/write ration, drive space utilization, etc.) We’re looking forward to sharing some results in the near future!

]]> By: Andrey http://www.rethinkdb.com/blog/2009/10/rebench-cutting-through-the-myths-of-io-performance/comment-page-1/#comment-4824 Andrey Thu, 08 Oct 2009 15:45:36 +0000 http://www.rethinkdb.com/blog/?p=81#comment-4824 Just wondering what is a performance if you mix random read and sequential writes. Something like this: append, random read, append, random read, append, random read ... With regular HD you will random write performance. How about SSD? Just wondering what is a performance if you mix random read and sequential writes. Something like this:
append, random read, append, random read, append, random read …
With regular HD you will random write performance. How about SSD?

]]> By: Igor http://www.rethinkdb.com/blog/2009/10/rebench-cutting-through-the-myths-of-io-performance/comment-page-1/#comment-4524 Igor Tue, 06 Oct 2009 22:20:49 +0000 http://www.rethinkdb.com/blog/?p=81#comment-4524 Never mind - I forgot to export LD_LIBRARY_PATH=/usr/local/lib Never mind – I forgot to
export LD_LIBRARY_PATH=/usr/local/lib

]]> By: Igor http://www.rethinkdb.com/blog/2009/10/rebench-cutting-through-the-myths-of-io-performance/comment-page-1/#comment-4523 Igor Tue, 06 Oct 2009 22:17:06 +0000 http://www.rethinkdb.com/blog/?p=81#comment-4523 After installing GSL and then rebench I'm getting this on CentOS 5.3: [root@localhost coffeemug-rebench-a58a28c]# ./rebench /dev/sdg1 ./rebench: error while loading shared libraries: libgsl.so.0: cannot open shared object file: No such file or directory Any thoughts? After installing GSL and then rebench I’m getting this on CentOS 5.3:

[root@localhost coffeemug-rebench-a58a28c]# ./rebench /dev/sdg1
./rebench: error while loading shared libraries: libgsl.so.0: cannot open shared object file: No such file or directory

Any thoughts?

]]> By: Michael http://www.rethinkdb.com/blog/2009/10/rebench-cutting-through-the-myths-of-io-performance/comment-page-1/#comment-4409 Michael Tue, 06 Oct 2009 12:18:42 +0000 http://www.rethinkdb.com/blog/?p=81#comment-4409 Baron: Thanks for pointing that out, that was a typo on our part. I've updated the post to reflect that the drive used is a Western Digital 80GB 7200RPM drive. Baron: Thanks for pointing that out, that was a typo on our part. I’ve updated the post to reflect that the drive used is a Western Digital 80GB 7200RPM drive.

]]> By: RethinkDB - The database for solid state drives. http://www.rethinkdb.com/blog/2009/10/rebench-cutting-through-the-myths-of-io-performance/comment-page-1/#comment-4404 RethinkDB - The database for solid state drives. Tue, 06 Oct 2009 11:59:52 +0000 http://www.rethinkdb.com/blog/?p=81#comment-4404 [...] Rebench: cutting through the myths of I/O performance [...] [...] Rebench: cutting through the myths of I/O performance [...]

]]> By: Baron http://www.rethinkdb.com/blog/2009/10/rebench-cutting-through-the-myths-of-io-performance/comment-page-1/#comment-4041 Baron Sun, 04 Oct 2009 23:09:35 +0000 http://www.rethinkdb.com/blog/?p=81#comment-4041 You said "dev/sda is a Western Digital 40GB... Benchmarking results for [/dev/sda] (74GB)" What is the 74GB for there? You said “dev/sda is a Western Digital 40GB… Benchmarking results for [/dev/sda] (74GB)”

What is the 74GB for there?

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