[BENCHMARK] TIObench results for kernel 2.5.53, latency reduces

Aniruddha M Marathe (aniruddha.marathe@wipro.com)
Thu, 26 Dec 2002 10:19:35 +0530


Hi,
Here are the results of comparison of kernel 2.5.53 and 2.5.52.
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 2.5.53 (as compared to
2.5.52) APPRXIMATE % change
-------------------------------------------------------------
rate (megabytes per second) 10% increase
CPU % utilization 10% increase
Average Latency 15% decrease
Maximum latency 20+ % decrease
CPU efficiency less than 5% increase
-------------------------------------------------------------

Here are the complete results.
***************************************************************
TIObench
kernel 2.5.53
***************************************************************

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
---------------------------- ------ ----- --- ------ ------ --------- ----------- -------- -------- -----
2.5.53 252 4096 10 9.79 5.844% 10.318 849.54 0.00000 0.00000 168

Random Reads
File Blk Num Avg Maximum Lat% Lat% CPU
Identifier Size Size Thr Rate (CPU%) Latency Latency >2s >10s Eff
---------------------------- ------ ----- --- ------ ------ --------- ----------- -------- -------- -----
2.5.53 252 4096 10 0.53 0.747% 199.206 829.67 0.00000 0.00000 71

Sequential Writes
File Blk Num Avg Maximum Lat% Lat% CPU
Identifier Size Size Thr Rate (CPU%) Latency Latency >2s >10s Eff
---------------------------- ------ ----- --- ------ ------ --------- ----------- -------- -------- -----
2.5.53 252 4096 10 18.47 34.87% 3.460 23116.35 0.05312 0.00000 53

Random Writes
File Blk Num Avg Maximum Lat% Lat% CPU
Identifier Size Size Thr Rate (CPU%) Latency Latency >2s >10s Eff
---------------------------- ------ ----- --- ------ ------ --------- ----------- -------- -------- -----
2.5.53 252 4096 10 0.80 1.154% 1.692 2037.52 0.00000 0.00000 69

Aniruddha Marathe
WIPRO Technologies, India
aniruddha.marathe@wipro.com
+91-80-5502001 to 2008 extn 5092
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