Messages in this thread | | | Subject | Latest kernel LMBench performance results.(with HZ=1000) | Date | Wed, 6 Nov 2002 09:14:12 +0530 | From | "Pavan Kumar Reddy N.S." <> |
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Hi All,
Here is the summary of the LMBench performance test result of different Linux kernels.
There is not much difference between kernels except there is a little increase in file system and memory latency between 2.5.45 and 2.5.46 kernels.
-pavan
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L M B E N C H 2 . 0 [PATCH 3] S U M M A R Y ------------------------------------------------------------
Hardware Specifications: --------------------------------------
# CPU's : 1 - Intel PIII Motherboard : Intel 810 CPU Freq : 859 MHz RAM : 128MB L1 I Cache : 16K L1 D Cache : 16K L2 Cache : 256K File System : ext3 glibc ver. : 2.2.5-34 eth0 : RTL8139 HZ (linux/include/asm-i386/param.h) : 1000
Processor, Processes - times in microseconds - smaller is better ------------------------------------------------------------------ OS null null open selct sig sig fork exec sh call I/O stat close TCP inst hndl proc proc proc ------------------------------------------------------------------ Lx2.4.19 0.39 0.68 3.98 5.33 28.8 0.95 3.07 147. 792. 5351 Lx2.4.20rc1 0.39 0.69 3.79 4.97 32.3 0.94 3.07 149. 762. 5299
Lx2.5.43 0.39 0.77 24.6 26.1 30.0 1.02 4.71 437. 1575 7817 Lx2.5.44 0.39 0.75 24.6 26.2 30.0 1.02 4.84 364. 1562 7661 Lx2.5.45 0.39 0.80 24.9 26.3 34.9 1.17 6.00 380. 1492 7551 Lx2.5.46 0.39 0.76 24.6 26.5 33.7 1.18 5.95 379. 1574 7759 ------------------------------------------------------------------
Context switching - times in microseconds - smaller is better -------------------------------------------------------------------- OS 2p/0K 2p/16K 2p/64K 8p/16K 8p/64K 16p/16K 16p/64K ctxsw ctxsw ctxsw ctxsw ctxsw ctxsw ctxsw -------------------------------------------------------------------- Lx2.4.19 1.120 4.4900 13.4 9.6600 186.6 42.5 188.7 Lx2.4.20rc1 1.140 4.4700 13.3 8.4400 188.0 45.1 187.6
Lx 2.5.43 1.210 4.5300 13.2 7.9600 187.2 44.4 189.7 Lx 2.5.44 1.070 4.4100 13.1 7.8600 187.1 43.4 189.8 Lx 2.5.45 1.260 4.5800 13.2 7.7400 189.0 43.3 190.2 Lx 2.5.46 1.240 4.5600 13.2 7.7500 187.7 44.7 189.3 --------------------------------------------------------------------
*Local* Communication latencies in microseconds - smaller is better -------------------------------------------------------------------- OS 2p/0K Pipe AF UDP RPC/ TCP RPC/ TCP ctxsw UNIX UDP TCP conn -------------------------------------------------------------------- Lx2.4.19 1.120 6.371 11.4 17.9 38.3 24.5 50.7 84.5 Lx2.4.20rc1 1.140 6.348 11.6 18.3 38.8 25.8 51.7 86.4
Lx2.5.43 1.140 6.936 21.6 30.1 53.7 113.7 145.4 142. Lx2.5.44 1.170 7.010 19.1 29.8 55.5 113.5 146.1 143. Lx2.5.45 1.190 7.537 17.9 30.2 53.6 73.3 101.2 149. Lx2.5.46 1.240 6.858 19.3 31.5 54.4 113.4 141.8 148. ---------------------------------------------------------------------
File & VM system latencies in microseconds - smaller is better ------------------------------------------------------------------ OS 0K File 10K File Mmap Prot Page Create Delete Create Delete Latency Fault Fault ------------------------------------------------------------------ Lx2.4.19 71.7 23.6 238.3 48.9 293.0 0.771 2.00000 Lx2.4.20rc1 72.3 24.8 243.2 49.4 287.0 0.758 2.00000
Lx2.5.43 97.7 52.9 294.8 88.6 510.0 0.971 3.00000 Lx2.5.44 98.2 53.2 298.2 88.4 505.0 0.927 3.00000 Lx2.5.45 105.8 54.4 308.3 92.4 508.0 0.957 3.00000 Lx2.5.46 102.4 56.4 303.9 95.5 563.0 1.020 3.00000 ------------------------------------------------------------------
*Local* Communication bandwidths in MB/s - bigger is better ----------------------------------------------------------------- OS Pipe AF TCP File Mmap Bcopy Bcopy Mem Mem UNIX reread reread (libc)(hand)read write ----------------------------------------------------------------- Lx2.4.19 719. 337. 150. 310.3 344.8 110.4 102.2 345. 139.7 Lx2.4.20rc1 721. 409. 150. 311.1 345.4 110.6 101.6 344. 139.9
Lx2.5.43 387. 147. 17.7 304.9 344.5 110.6 102.8 345. 139.5 Lx2.5.44 402. 150. 17.1 307.1 344.4 110.6 102.7 344. 139.7 Lx2.5.45 383. 250. 22.0 305.2 344.8 111.2 102.5 344. 139.6 Lx2.5.46 359. 147. 21.2 304.4 344.0 110.9 102.1 343. 139.5 -----------------------------------------------------------------
Memory latencies in nanoseconds - smaller is better (WARNING - may not be correct, check graphs) ----------------------------------------------------------------- OS Mhz L1 $ L2 $ Main mem Guesses ----------------------------------------------------------------- Linux 2.4.19 859 3.490 8.1530 180.9 Linux 2.4.20rc1 859 3.490 8.1530 180.6
Linux 2.5.43 859 3.490 8.1540 180.8 Linux 2.5.44 859 3.491 8.1540 181.0 Linux 2.5.45 859 3.490 8.1540 179.6 Linux 2.5.46 859 3.491 8.1570 181.3 -----------------------------------------------------------------
Note: All results are average of five iterations.
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============================================ PAVAN KUMAR REDDY N.S. Sr.Software Engineer Wipro Technologies 53/1, Hosur road, Madivala Bangalore - 68. pavan.kumar@wipro.com Phone Off: +91-80-5502001-8 extn: 5086. Res: +91-80-6685179 http://www.wipro.com/linux/ ============================================ **************************Disclaimer************************************************** Information contained in this E-MAIL being proprietary to Wipro Limited is 'privileged' and 'confidential' and intended for use only by the individual or entity to which it is addressed. You are notified that any use, copying or dissemination of the information contained in the E-MAIL in any manner whatsoever is strictly prohibited.
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