[mythtv-users] How many simultaneous recordings on one drive?
Kris B.
krisbee at krisbee.com
Wed Sep 28 21:48:15 UTC 2011
On Wednesday, September 28, 2011 4:29 PM, "Eric Sharkey"
<eric at lisaneric.org> wrote:
> On Wed, Sep 28, 2011 at 4:22 PM, belcampo <belcampo at zonnet.nl> wrote:
> > On 09/28/2011 06:50 PM, Eric Sharkey wrote:
> >> If you have doubts, test it out. Most linux distributions ship a disk
> >> benchmarking suite called bonnie (or bonnie++). Run it on your
> >> hardware and see what your actual measured maximum performance is.
> > Mythtv recording + update mythconverg isn't a typical database
> > application, which is what bonnie++ is testing, at least AFAIK
>
> bonnie++ runs a variety of different tests to simulate a variety of
> different kinds of workloads. It isn't a single benchmark.
>
> Eric
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>
I am not quite sure how to read my results, does this mean my Myth drive
can handle 98/mbs?:
Results for OS Drive:
Version 1.96 ------Sequential Output------ --Sequential Input-
--Random-
Concurrency 1 -Per Chr- --Block-- -Rewrite- -Per Chr- --Block--
--Seeks--
Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP
/sec %CP
localhost.locald 4G 251 89 45282 18 22993 7 562 63 76175 10
174.6 5
Latency 90914us 521ms 1416ms 97811us 277ms
204ms
Version 1.96 ------Sequential Create------ --------Random
Create--------
localhost.localdoma -Create-- --Read--- -Delete-- -Create-- --Read---
-Delete--
files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
/sec %CP
16 1670 87 +++++ +++ +++++ +++ 1656 85 +++++ +++
4142 82
Latency 19728us 5890us 6664us 20510us 236us
41276us
Results for Myth Drive:
Version 1.96 ------Sequential Output------ --Sequential Input-
--Random-
Concurrency 1 -Per Chr- --Block-- -Rewrite- -Per Chr- --Block--
--Seeks--
Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP
/sec %CP
localhost.locald 4G 493 82 98341 22 33124 10 886 91 123012 18
133.8 3
Latency 54205us 748ms 648ms 22987us 37155us
269ms
Version 1.96 ------Sequential Create------ --------Random
Create--------
localhost.localdoma -Create-- --Read--- -Delete-- -Create-- --Read---
-Delete--
files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
/sec %CP
16 238 2 +++++ +++ 128 1 125 1 +++++ +++
104 1
Latency 276ms 5982us 265ms 302ms 6891us
374ms
--
Kris B.
krisbee at krisbee.com
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