* raid5 performance after upgrade to 2.4.28
2005-01-12 5:18 raid5 performance - 2.4.28 Tim Moore
@ 2005-01-12 6:17 ` Guy
2005-01-12 7:44 ` Guy
0 siblings, 1 reply; 5+ messages in thread
From: Guy @ 2005-01-12 6:17 UTC (permalink / raw)
To: linux-raid
About 1 month ago I upgraded from Kernel 2.4.20-8 to 2.4.28.
Today I noticed my sequential read speed is up by about 12%.
I don't recall making any other changes that would affect speed.
So, I guess the Kernel upgrade made the difference.
An old bonnie output:
Version 1.03 ------Sequential Output------ --Sequential Input- --Random-
-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
watkins-ho 1G 3293 97 34587 89 22306 53 3549 99 67492 63 500.1 9
Today:
watkins-ho 1G 4944 99 31719 65 18538 43 5184 98 75440 71 602.5 8
^^^^ ^^^^ ^^^^^ ^^^^^
Some things improved, others decreased.
Of course, no change I can notice on my own.
I needed to measure performance to notice.
I guess I should try Kernel 2.6 some day.
Guy
^ permalink raw reply [flat|nested] 5+ messages in thread
* RE: raid5 performance after upgrade to 2.4.28
2005-01-12 6:17 ` raid5 performance after upgrade to 2.4.28 Guy
@ 2005-01-12 7:44 ` Guy
2005-01-13 16:24 ` Tim Moore
0 siblings, 1 reply; 5+ messages in thread
From: Guy @ 2005-01-12 7:44 UTC (permalink / raw)
To: linux-raid
Now the bad news...
I have 2 CPUs P3-500Mhz, 512Meg ram. So I ran 2 bonnies at the same time.
Kernel 2.4.20-8 with 2 Bonnies at the same time:
Version 1.03 ------Sequential Output------ --Sequential Input- --Random-
-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
watkins-ho 1G 3091 85 18593 44 9733 24 3443 97 59895 60 249.6 6
watkins-ho 1G 2980 87 21176 54 10167 23 3478 99 44525 44 384.2 9
---- ----- ----- ---- ------ -----
Total 6071 39769 19900 6921 104420 633.8
Kernel 2.4.28 with 2 Bonnies at the same time:
watkins-ho 1G 4456 92 17922 52 6489 17 4961 96 26571 32 320.4 12
watkins-ho 1G 4343 89 17987 52 6197 17 4946 96 25646 31 363.7 7
---- ----- ----- ---- ------ -----
Total 8799 35909 12686 9907 52217 684.1
Very odd, the sequential read speed is almost exactly 1/2 now.
Oh well, I still can't tell without a tool to measure the speed.
But I still don't like it!
My network is only 100BaseT, so it is still well beyond that!
Guy
-----Original Message-----
From: linux-raid-owner@vger.kernel.org
[mailto:linux-raid-owner@vger.kernel.org] On Behalf Of Guy
Sent: Wednesday, January 12, 2005 1:17 AM
To: linux-raid@vger.kernel.org
Subject: raid5 performance after upgrade to 2.4.28
About 1 month ago I upgraded from Kernel 2.4.20-8 to 2.4.28.
Today I noticed my sequential read speed is up by about 12%.
I don't recall making any other changes that would affect speed.
So, I guess the Kernel upgrade made the difference.
An old bonnie output:
Version 1.03 ------Sequential Output------ --Sequential Input- --Random-
-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
watkins-ho 1G 3293 97 34587 89 22306 53 3549 99 67492 63 500.1 9
Today:
watkins-ho 1G 4944 99 31719 65 18538 43 5184 98 75440 71 602.5 8
^^^^ ^^^^ ^^^^^ ^^^^^
Some things improved, others decreased.
Of course, no change I can notice on my own.
I needed to measure performance to notice.
I guess I should try Kernel 2.6 some day.
Guy
-
To unsubscribe from this list: send the line "unsubscribe linux-raid" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: raid5 performance after upgrade to 2.4.28
2005-01-12 7:44 ` Guy
@ 2005-01-13 16:24 ` Tim Moore
0 siblings, 0 replies; 5+ messages in thread
From: Tim Moore @ 2005-01-13 16:24 UTC (permalink / raw)
To: linux-raid
Did values change in /proc/sys/vm/{min,max}-readahead?
http://lists.us.dell.com/pipermail/linux-poweredge/2004-February/036166.html
Guy wrote:
> Now the bad news...
>
> I have 2 CPUs P3-500Mhz, 512Meg ram. So I ran 2 bonnies at the same time.
>
> Kernel 2.4.20-8 with 2 Bonnies at the same time:
> Version 1.03 ------Sequential Output------ --Sequential Input- --Random-
> -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
> watkins-ho 1G 3091 85 18593 44 9733 24 3443 97 59895 60 249.6 6
> watkins-ho 1G 2980 87 21176 54 10167 23 3478 99 44525 44 384.2 9
> ---- ----- ----- ---- ------ -----
> Total 6071 39769 19900 6921 104420 633.8
>
> Kernel 2.4.28 with 2 Bonnies at the same time:
> watkins-ho 1G 4456 92 17922 52 6489 17 4961 96 26571 32 320.4 12
> watkins-ho 1G 4343 89 17987 52 6197 17 4946 96 25646 31 363.7 7
> ---- ----- ----- ---- ------ -----
> Total 8799 35909 12686 9907 52217 684.1
>
> Very odd, the sequential read speed is almost exactly 1/2 now.
>
> Oh well, I still can't tell without a tool to measure the speed.
> But I still don't like it!
>
> My network is only 100BaseT, so it is still well beyond that!
>
> Guy
>
> -----Original Message-----
> From: linux-raid-owner@vger.kernel.org
> [mailto:linux-raid-owner@vger.kernel.org] On Behalf Of Guy
> Sent: Wednesday, January 12, 2005 1:17 AM
> To: linux-raid@vger.kernel.org
> Subject: raid5 performance after upgrade to 2.4.28
>
> About 1 month ago I upgraded from Kernel 2.4.20-8 to 2.4.28.
> Today I noticed my sequential read speed is up by about 12%.
>
> I don't recall making any other changes that would affect speed.
> So, I guess the Kernel upgrade made the difference.
>
> An old bonnie output:
> Version 1.03 ------Sequential Output------ --Sequential Input- --Random-
> -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
> watkins-ho 1G 3293 97 34587 89 22306 53 3549 99 67492 63 500.1 9
>
> Today:
> watkins-ho 1G 4944 99 31719 65 18538 43 5184 98 75440 71 602.5 8
> ^^^^ ^^^^ ^^^^^ ^^^^^
>
> Some things improved, others decreased.
>
> Of course, no change I can notice on my own.
> I needed to measure performance to notice.
>
> I guess I should try Kernel 2.6 some day.
>
> Guy
>
> -
> To unsubscribe from this list: send the line "unsubscribe linux-raid" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
>
> -
> To unsubscribe from this list: send the line "unsubscribe linux-raid" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
>
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: raid5 performance after upgrade to 2.4.28
@ 2005-01-13 16:25 Tim Moore
2005-01-13 16:45 ` Guy
0 siblings, 1 reply; 5+ messages in thread
From: Tim Moore @ 2005-01-13 16:25 UTC (permalink / raw)
To: linux-raid
Did values change in /proc/sys/vm/{min,max}-readahead?
http://lists.us.dell.com/pipermail/linux-poweredge/2004-February/036166.html
Guy wrote:
> Now the bad news...
>
> I have 2 CPUs P3-500Mhz, 512Meg ram. So I ran 2 bonnies at the same time.
>
> Kernel 2.4.20-8 with 2 Bonnies at the same time:
> Version 1.03 ------Sequential Output------ --Sequential Input- --Random-
> -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
> watkins-ho 1G 3091 85 18593 44 9733 24 3443 97 59895 60 249.6 6
> watkins-ho 1G 2980 87 21176 54 10167 23 3478 99 44525 44 384.2 9
> ---- ----- ----- ---- ------ -----
> Total 6071 39769 19900 6921 104420 633.8
>
> Kernel 2.4.28 with 2 Bonnies at the same time:
> watkins-ho 1G 4456 92 17922 52 6489 17 4961 96 26571 32 320.4 12
> watkins-ho 1G 4343 89 17987 52 6197 17 4946 96 25646 31 363.7 7
> ---- ----- ----- ---- ------ -----
> Total 8799 35909 12686 9907 52217 684.1
>
> Very odd, the sequential read speed is almost exactly 1/2 now.
>
> Oh well, I still can't tell without a tool to measure the speed.
> But I still don't like it!
>
> My network is only 100BaseT, so it is still well beyond that!
>
> Guy
>
> -----Original Message-----
> From: linux-raid-owner@vger.kernel.org
> [mailto:linux-raid-owner@vger.kernel.org] On Behalf Of Guy
> Sent: Wednesday, January 12, 2005 1:17 AM
> To: linux-raid@vger.kernel.org
> Subject: raid5 performance after upgrade to 2.4.28
>
> About 1 month ago I upgraded from Kernel 2.4.20-8 to 2.4.28.
> Today I noticed my sequential read speed is up by about 12%.
>
> I don't recall making any other changes that would affect speed.
> So, I guess the Kernel upgrade made the difference.
>
> An old bonnie output:
> Version 1.03 ------Sequential Output------ --Sequential Input- --Random-
> -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
> watkins-ho 1G 3293 97 34587 89 22306 53 3549 99 67492 63 500.1 9
>
> Today:
> watkins-ho 1G 4944 99 31719 65 18538 43 5184 98 75440 71 602.5 8
> ^^^^ ^^^^ ^^^^^ ^^^^^
>
> Some things improved, others decreased.
>
> Of course, no change I can notice on my own.
> I needed to measure performance to notice.
>
> I guess I should try Kernel 2.6 some day.
>
> Guy
>
> -
> To unsubscribe from this list: send the line "unsubscribe linux-raid" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
>
> -
> To unsubscribe from this list: send the line "unsubscribe linux-raid" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
>
--
| for direct mail add "private_" in front of user name
^ permalink raw reply [flat|nested] 5+ messages in thread
* RE: raid5 performance after upgrade to 2.4.28
2005-01-13 16:25 raid5 performance after upgrade to 2.4.28 Tim Moore
@ 2005-01-13 16:45 ` Guy
0 siblings, 0 replies; 5+ messages in thread
From: Guy @ 2005-01-13 16:45 UTC (permalink / raw)
To: 'Tim Moore', linux-raid
I did not change them. I don't know if the kernel did.
I will try to notice the next chance I get.
With 2.4.28 I have 3 and 31.
Guy
-----Original Message-----
From: linux-raid-owner@vger.kernel.org
[mailto:linux-raid-owner@vger.kernel.org] On Behalf Of Tim Moore
Sent: Thursday, January 13, 2005 11:26 AM
To: linux-raid@vger.kernel.org
Subject: Re: raid5 performance after upgrade to 2.4.28
Did values change in /proc/sys/vm/{min,max}-readahead?
http://lists.us.dell.com/pipermail/linux-poweredge/2004-February/036166.html
Guy wrote:
> Now the bad news...
>
> I have 2 CPUs P3-500Mhz, 512Meg ram. So I ran 2 bonnies at the same
time.
>
> Kernel 2.4.20-8 with 2 Bonnies at the same time:
> Version 1.03 ------Sequential Output------ --Sequential Input- --Random-
> -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
> watkins-ho 1G 3091 85 18593 44 9733 24 3443 97 59895 60 249.6 6
> watkins-ho 1G 2980 87 21176 54 10167 23 3478 99 44525 44 384.2 9
> ---- ----- ----- ---- ------ -----
> Total 6071 39769 19900 6921 104420 633.8
>
> Kernel 2.4.28 with 2 Bonnies at the same time:
> watkins-ho 1G 4456 92 17922 52 6489 17 4961 96 26571 32 320.4 12
> watkins-ho 1G 4343 89 17987 52 6197 17 4946 96 25646 31 363.7 7
> ---- ----- ----- ---- ------ -----
> Total 8799 35909 12686 9907 52217 684.1
>
> Very odd, the sequential read speed is almost exactly 1/2 now.
>
> Oh well, I still can't tell without a tool to measure the speed.
> But I still don't like it!
>
> My network is only 100BaseT, so it is still well beyond that!
>
> Guy
>
> -----Original Message-----
> From: linux-raid-owner@vger.kernel.org
> [mailto:linux-raid-owner@vger.kernel.org] On Behalf Of Guy
> Sent: Wednesday, January 12, 2005 1:17 AM
> To: linux-raid@vger.kernel.org
> Subject: raid5 performance after upgrade to 2.4.28
>
> About 1 month ago I upgraded from Kernel 2.4.20-8 to 2.4.28.
> Today I noticed my sequential read speed is up by about 12%.
>
> I don't recall making any other changes that would affect speed.
> So, I guess the Kernel upgrade made the difference.
>
> An old bonnie output:
> Version 1.03 ------Sequential Output------ --Sequential Input- --Random-
> -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
> watkins-ho 1G 3293 97 34587 89 22306 53 3549 99 67492 63 500.1 9
>
> Today:
> watkins-ho 1G 4944 99 31719 65 18538 43 5184 98 75440 71 602.5 8
> ^^^^ ^^^^ ^^^^^ ^^^^^
>
> Some things improved, others decreased.
>
> Of course, no change I can notice on my own.
> I needed to measure performance to notice.
>
> I guess I should try Kernel 2.6 some day.
>
> Guy
>
> -
> To unsubscribe from this list: send the line "unsubscribe linux-raid" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
>
> -
> To unsubscribe from this list: send the line "unsubscribe linux-raid" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
>
--
| for direct mail add "private_" in front of user name
-
To unsubscribe from this list: send the line "unsubscribe linux-raid" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2005-01-13 16:45 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2005-01-13 16:25 raid5 performance after upgrade to 2.4.28 Tim Moore
2005-01-13 16:45 ` Guy
-- strict thread matches above, loose matches on Subject: below --
2005-01-12 5:18 raid5 performance - 2.4.28 Tim Moore
2005-01-12 6:17 ` raid5 performance after upgrade to 2.4.28 Guy
2005-01-12 7:44 ` Guy
2005-01-13 16:24 ` Tim Moore
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).