lkml.org 
[lkml]   [2003]   [Jan]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Subject[BENCHMARK] TIO bench result for 2.5.54 (poor performance)
Date
From
Hi,
Here are the results of comparison of kernel 2.5.54 and 2.5.53.
on TIObench. key findings are listed in the table. Values in the table indicate approximate percentage change with respect to previous result. Please see the mail in full window to see the formatted results.


-------------------------------------------------------------
test 2.5.54 (as compared to
2.5.53) APPROXIMATE % change
-------------------------------------------------------------
rate (megabytes per second) 20% decrease
CPU % utilization 15% decrease
Average Latency 40% increase
Maximum latency 20+ % increase
CPU efficiency less than 15% decrease
-------------------------------------------------------------

Here are the complete results.
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
---------------------------- ------ ----- --- ------ ------ --------- ----------- -------- -------- -----
2.5.54 252 4096 10 7.83 5.349% 14.620 1226.26 0.00000 0.00000 146

Random Reads
File Blk Num Avg Maximum Lat% Lat% CPU
Identifier Size Size Thr Rate (CPU%) Latency Latency >2s >10s Eff
---------------------------- ------ ----- --- ------ ------ --------- ----------- -------- -------- -----
2.5.54 252 4096 10 0.36 1.050% 305.312 1363.70 0.00000 0.00000 35

Sequential Writes
File Blk Num Avg Maximum Lat% Lat% CPU
Identifier Size Size Thr Rate (CPU%) Latency Latency >2s >10s Eff
---------------------------- ------ ----- --- ------ ------ --------- ----------- -------- -------- -----
2.5.54 252 4096 10 18.42 37.67% 4.242 10048.16 0.05000 0.00000 49

Random Writes
File Blk Num Avg Maximum Lat% Lat% CPU
Identifier Size Size Thr Rate (CPU%) Latency Latency >2s >10s Eff
---------------------------- ------ ----- --- ------ ------ --------- ----------- -------- -------- -----
2.5.54 252 4096 10 0.78 1.251% 2.243 1400.69 0.00000 0.00000 63

Regards,
Aniruddha Marathe
WIPRO Technologies, India
aniruddha.marathe@wipro.com
+91-80-5502001 to 2008 extn 5092
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:32    [W:0.030 / U:3.656 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site