2003-02-21 10:33:41

by Aniruddha M Marathe

Subject: [BENCHMARK] TIObench 2.5.60 performance

Here is TIObench performance of 2.5.62. Comparison of 2.5.62 and 2.5.60 is given below.



-----------------------------------------------------------------------------------------------------------------
test 2.5.62 (as compared to
2.5.60) APPROXIMATE % change
----------------------------------------------------------------------------------------------------------------
rate (megabytes per second) less than 5% increase
CPU % utilization less than 5% increase
Average Latency 5 % decrease
Maximum latency 5-10 % increase
CPU efficiency less than 5% increase
-----------------------------------------------------------------------------------------------------------------


************************************************************
TIObench for kernel 2.5.62
************************************************************
No size specified, using 252 MB

Unit information
================
File size = megabytes
Blk Size = bytes
Rate = megabytes per second
CPU% = percentage of CPU used during the test
Latency = milliseconds
Lat% = percent of requests that took longer than X seconds
CPU Eff = Rate divided by CPU% - throughput per cpu load

Sequential Reads
File Blk Num Avg Maximum Lat% Lat% CPU
Identifier Size Size Thr Rate (CPU%) Latency Latency >2s >10s Eff
---------------------------- ------ ----- --- ------ ------ --------- ----------- -------- -------- -----
2.5.62 252 4096 10 7.93 4.271% 12.438 2841.36 0.00000 0.00000 186

Random Reads
File Blk Num Avg Maximum Lat% Lat% CPU
Identifier Size Size Thr Rate (CPU%) Latency Latency >2s >10s Eff
---------------------------- ------ ----- --- ------ ------ --------- ----------- -------- -------- -----
2.5.62 252 4096 10 0.47 0.552% 213.629 1301.68 0.00000 0.00000 84

Sequential Writes
File Blk Num Avg Maximum Lat% Lat% CPU
Identifier Size Size Thr Rate (CPU%) Latency Latency >2s >10s Eff
---------------------------- ------ ----- --- ------ ------ --------- ----------- -------- -------- -----
2.5.62 252 4096 10 12.39 21.14% 6.214 37150.05 0.10157 0.00782 59

Random Writes
File Blk Num Avg Maximum Lat% Lat% CPU
Identifier Size Size Thr Rate (CPU%) Latency Latency >2s >10s Eff
---------------------------- ------ ----- --- ------ ------ --------- ----------- -------- -------- -----
2.5.62 252 4096 10 0.73 0.891% 0.762 1761.34 0.00000 0.00000 81
No size specified, using 252 MB

Aniruddha Marathe
WIPRO Technologies, India.

2003-02-21 12:57:56

by Bob Johnson

Subject: Re: [BENCHMARK] TIObench 2.5.60 performance

My Tiobenchs on raid0 are quite a bit slower with 2.5.62 then 2.4.20 vanilla
:(
average 50m/sec on 2.4
average 28m/sec on 2.5.62
hdparm shows similiar results.

On Friday 21 February 2003 05:43 am, Aniruddha M Marathe wrote:
> Here is TIObench performance of 2.5.62. Comparison of 2.5.62 and 2.5.60 is
> given below.
>
>
>
> ---------------------------------------------------------------------------
>-------------------------------------- test 2.5.62 (as compared to
> 2.5.60) APPROXIMATE % change
> ---------------------------------------------------------------------------
>------------------------------------- rate (megabytes per second) less than
> 5% increase
> CPU % utilization less than 5% increase
> Average Latency 5 % decrease
> Maximum latency 5-10 % increase
> CPU efficiency less than 5% increase
> ---------------------------------------------------------------------------
>--------------------------------------
>
>
> ************************************************************
> TIObench for kernel 2.5.62
> ************************************************************
> No size specified, using 252 MB
>
> Unit information
> ================
> File size = megabytes
> Blk Size = bytes
> Rate = megabytes per second
> CPU% = percentage of CPU used during the test
> Latency = milliseconds
> Lat% = percent of requests that took longer than X seconds
> CPU Eff = Rate divided by CPU% - throughput per cpu load
>
> Sequential Reads
> File Blk Num Avg
> Maximum Lat% Lat% CPU Identifier Size Size
> Thr Rate (CPU%) Latency Latency >2s >10s Eff
> ---------------------------- ------ ----- --- ------ ------ ---------
> ----------- -------- -------- ----- 2.5.62 252
> 4096 10 7.93 4.271% 12.438 2841.36 0.00000 0.00000 186
>
> Random Reads
> File Blk Num Avg
> Maximum Lat% Lat% CPU Identifier Size Size
> Thr Rate (CPU%) Latency Latency >2s >10s Eff
> ---------------------------- ------ ----- --- ------ ------ ---------
> ----------- -------- -------- ----- 2.5.62 252
> 4096 10 0.47 0.552% 213.629 1301.68 0.00000 0.00000 84
>
> Sequential Writes
> File Blk Num Avg
> Maximum Lat% Lat% CPU Identifier Size Size
> Thr Rate (CPU%) Latency Latency >2s >10s Eff
> ---------------------------- ------ ----- --- ------ ------ ---------
> ----------- -------- -------- ----- 2.5.62 252
> 4096 10 12.39 21.14% 6.214 37150.05 0.10157 0.00782 59
>
> Random Writes
> File Blk Num Avg
> Maximum Lat% Lat% CPU Identifier Size Size
> Thr Rate (CPU%) Latency Latency >2s >10s Eff
> ---------------------------- ------ ----- --- ------ ------ ---------
> ----------- -------- -------- ----- 2.5.62 252
> 4096 10 0.73 0.891% 0.762 1761.34 0.00000 0.00000 81 No
> size specified, using 252 MB
>
> Aniruddha Marathe
> WIPRO Technologies, India.
> -
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