Messages in this thread | | | Subject | [BENCHMARK] TIO bench result for 2.5.54 (poor performance) | Date | Fri, 3 Jan 2003 11:32:21 +0530 | From | "Aniruddha M Marathe" <> |
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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/
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