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Hi All,
Here are the performance results of latest Linux 2.4 kernel tree using
LMBench (V2.0patch2).
There is a small drop in overall performance except memory latencies from
2.4.18-3(RedHat Linux 7.3) kernel to 2.4.20-pre10 kernel.
Thanks,
pavan.
============================================================================
Test Machine details:
---------------------
processor : 0 (single processor)
vendor_id : GenuineIntel
cpu family : 6
model : 8
model name : Pentium III (Coppermine)
stepping : 10
cpu MHz : 868.241
cache size : 256 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca
cmov pat pse36 mmx fxsr sse
bogomips : 1716.22
============================================================================
L M B E N C H 2 . 0 S U M M A R Y
------------------------------------
Basic system parameters
----------------------------------------------------
Host OS Description Mhz
--------- ------------- ----------------------- ----
access1 Linux 2.4.18- i686-pc-linux-gnu_2.18 868
access1 Linux 2.4.18- i686-pc-linux-gnu_2.18 868
access1 Linux 2.4.18- i686-pc-linux-gnu_2.18 868
access1 Linux 2.4.18- i686-pc-linux-gnu_2.18 868
access1 Linux 2.4.18- i686-pc-linux-gnu_2.18 868
Processor, Processes - times in microseconds - smaller is better
----------------------------------------------------------------
Host OS Mhz null null open selct sig sig fork exec sh
call I/O stat clos TCP inst hndl proc proc proc
--------- ------------- ---- ---- ---- ---- ---- ----- ---- ---- ---- ---- ----
access1 Linux 2.4.18- 868 0.37 0.51 2.94 3.69 0.93 2.91 150. 792. 5152
access1 Linux 2.4.18- 868 0.37 0.53 2.92 3.65 0.94 2.94 143. 735. 5127
access1 Linux 2.4.18- 868 0.36 0.53 2.95 3.66 16.3 0.94 2.92 138. 673. 4576
access1 Linux 2.4.18- 868 0.37 0.52 2.93 3.75 0.95 2.92 146. 668. 4604
access1 Linux 2.4.18- 868 0.37 0.52 2.91 3.65 17.6 0.93 2.92 191. 705. 4600
Context switching - times in microseconds - smaller is better
-------------------------------------------------------------
Host OS 2p/0K 2p/16K 2p/64K 8p/16K 8p/64K 16p/16K 16p/64K
ctxsw ctxsw ctxsw ctxsw ctxsw ctxsw ctxsw
--------- ------------- ----- ------ ------ ------ ------ ------- -------
access1 Linux 2.4.18- 0.650 4.0400 69.8 8.4900 182.3 41.2 183.5
access1 Linux 2.4.18- 0.640 4.0300 13.0 7.2300 178.9 39.5 187.8
access1 Linux 2.4.18- 0.830 4.0600 13.1 6.6400 148.3 32.4 149.3
access1 Linux 2.4.18- 0.880 4.1000 12.7 7.5700 147.7 40.0 149.1
access1 Linux 2.4.18- 0.850 4.0400 12.9 9.8300 147.7 33.0 149.2
*Local* Communication latencies in microseconds - smaller is better
-------------------------------------------------------------------
Host OS 2p/0K Pipe AF UDP RPC/ TCP RPC/ TCP
ctxsw UNIX UDP TCP conn
--------- ------------- ----- ----- ---- ----- ----- ----- ----- ----
access1 Linux 2.4.18- 0.650 4.327 8.13 23.0 43.5 32.1 58.0 101.
access1 Linux 2.4.18- 0.640 4.535 8.50 24.0 45.2 34.2 60.7 100.
access1 Linux 2.4.18- 0.830 4.515 8.43 23.9 45.4 33.9 60.3 100.
access1 Linux 2.4.18- 0.880 4.706 8.34 23.8 46.3 34.1 61.5 101.
access1 Linux 2.4.18- 0.850 5.349 8.45 24.0 45.9 34.6 61.2 100.
File & VM system latencies in microseconds - smaller is better
--------------------------------------------------------------
Host OS 0K File 10K File Mmap Prot Page
Create Delete Create Delete Latency Fault Fault
--------- ------------- ------ ------ ------ ------ ------- ----- -----
access1 Linux 2.4.18- 64.8 16.4 208.7 32.4 235.0 0.775 2.00000
access1 Linux 2.4.18- 67.9 15.9 228.1 37.4 233.0 0.983 7507.0
access1 Linux 2.4.18- 67.6 15.6 197.4 30.6 236.0 0.967 2.00000
access1 Linux 2.4.18- 68.2 15.8 196.5 30.7 235.0 1.065 2.00000
access1 Linux 2.4.18- 67.2 15.6 196.9 30.5 236.0 0.983 2.00000
*Local* Communication bandwidths in MB/s - bigger is better
-----------------------------------------------------------
Host OS Pipe AF TCP File Mmap Bcopy Bcopy Mem Mem
UNIX reread reread (libc) (hand) read write
--------- ------------- ---- ---- ---- ------ ------ ------ ------ ---- -----
access1 Linux 2.4.18- 853. 726. 43.0 292.2 344.7 111.1 104.3 343. 136.6
access1 Linux 2.4.18- 813. 201. 40.6 155.8 322.5 104.7 97.6 323. 131.7
access1 Linux 2.4.18- 798. 472. 98.6 343.7 387.9 131.8 121.5 390. 165.9
access1 Linux 2.4.18- 699. 327. 49.0 331.9 386.6 130.8 121.9 388. 165.2
access1 Linux 2.4.18- 682. 378. 50.0 326.0 388.3 130.4 119.8 386. 163.8
Memory latencies in nanoseconds - smaller is better
(WARNING - may not be correct, check graphs)
---------------------------------------------------
Host OS Mhz L1 $ L2 $ Main mem Guesses
--------- ------------- ---- ----- ------ -------- -------
access1 Linux 2.4.18- 868 3.455 8.0650 181.3
access1 Linux 2.4.18- 868 3.456 8.0750 197.4
access1 Linux 2.4.18- 868 3.456 8.0660 160.0
access1 Linux 2.4.18- 868 3.456 61.0 160.2
access1 Linux 2.4.18- 868 3.456 8.0640 162.0
================================================================================
L M B E N C H 2 . 0 S U M M A R Y
------------------------------------
Basic system parameters
----------------------------------------------------
Host OS Description Mhz
--------- ------------- ----------------------- ----
access1 Linux 2.4.20- i686-pc-linux-gnu_2.20 868
access1 Linux 2.4.20- i686-pc-linux-gnu_2.20 868
access1 Linux 2.4.20- i686-pc-linux-gnu_2.20 868
access1 Linux 2.4.20- i686-pc-linux-gnu_2.20 868
access1 Linux 2.4.20- i686-pc-linux-gnu_2.20 868
Processor, Processes - times in microseconds - smaller is better
----------------------------------------------------------------
Host OS Mhz null null open selct sig sig fork exec sh
call I/O stat clos TCP inst hndl proc proc proc
--------- ------------- ---- ---- ---- ---- ---- ----- ---- ---- ---- ---- ----
access1 Linux 2.4.20- 868 0.41 0.73 3.91 5.45 31.6 0.96 3.04 147. 735. 5102
access1 Linux 2.4.20- 868 0.41 0.69 3.88 5.34 30.7 0.96 3.04 162. 741. 5148
access1 Linux 2.4.20- 868 0.41 0.68 3.88 5.37 30.4 0.96 3.04 149. 699. 4617
access1 Linux 2.4.20- 868 0.41 0.72 3.99 5.47 33.7 0.96 3.04 192. 690. 4595
access1 Linux 2.4.20- 868 0.41 0.68 3.95 5.35 30.5 0.97 3.04 145. 705. 4611
Context switching - times in microseconds - smaller is better
-------------------------------------------------------------
Host OS 2p/0K 2p/16K 2p/64K 8p/16K 8p/64K 16p/16K 16p/64K
ctxsw ctxsw ctxsw ctxsw ctxsw ctxsw ctxsw
--------- ------------- ----- ------ ------ ------ ------ ------- -------
access1 Linux 2.4.20- 1.140 4.3000 13.2 8.6600 187.2 40.5 186.3
access1 Linux 2.4.20- 1.130 4.4900 15.1 7.2200 145.3 33.0 149.9
access1 Linux 2.4.20- 1.140 4.1600 13.8 8.2500 150.2 33.7 151.7
access1 Linux 2.4.20- 1.200 4.4400 13.7 6.6300 150.4 35.1 150.4
access1 Linux 2.4.20- 1.060 4.5100 13.3 8.7500 150.0 37.3 150.1
*Local* Communication latencies in microseconds - smaller is better
-------------------------------------------------------------------
Host OS 2p/0K Pipe AF UDP RPC/ TCP RPC/ TCP
ctxsw UNIX UDP TCP conn
--------- ------------- ----- ----- ---- ----- ----- ----- ----- ----
access1 Linux 2.4.20- 1.140 6.387 11.2 18.7 40.5 25.9 52.7 86.0
access1 Linux 2.4.20- 1.130 6.487 11.3 18.7 40.3 26.3 52.8 85.6
access1 Linux 2.4.20- 1.140 6.414 11.2 18.7 40.9 26.4 53.5 85.3
access1 Linux 2.4.20- 1.200 6.462 11.3 18.9 41.2 26.6 52.9 86.0
access1 Linux 2.4.20- 1.060 6.522 11.2 18.8 40.7 26.2 53.6 85.3
File & VM system latencies in microseconds - smaller is better
--------------------------------------------------------------
Host OS 0K File 10K File Mmap Prot Page
Create Delete Create Delete Latency Fault Fault
--------- ------------- ------ ------ ------ ------ ------- ----- -----
access1 Linux 2.4.20- 35.6 8.5450 152.7 20.3 270.0 0.826 3.00000
access1 Linux 2.4.20- 35.6 8.5510 153.3 20.3 275.0 0.803 2.00000
access1 Linux 2.4.20- 34.9 7.8700 132.7 19.1 271.0 0.821 2.00000
access1 Linux 2.4.20- 35.1 8.0060 132.6 19.2 267.0 0.818 3.00000
access1 Linux 2.4.20- 34.9 7.9410 132.5 19.1 273.0 0.832 2.00000
*Local* Communication bandwidths in MB/s - bigger is better
-----------------------------------------------------------
Host OS Pipe AF TCP File Mmap Bcopy Bcopy Mem Mem
UNIX reread reread (libc) (hand) read write
--------- ------------- ---- ---- ---- ------ ------ ------ ------ ---- -----
access1 Linux 2.4.20- 722. 656. 107. 308.2 346.0 109.5 101.9 346. 138.9
access1 Linux 2.4.20- 674. 348. 126. 305.3 343.7 110.8 124.4 414. 173.5
access1 Linux 2.4.20- 717. 493. 156. 364.2 419.4 136.4 123.6 419. 174.5
access1 Linux 2.4.20- 661. 562. 153. 359.8 417.0 136.2 125.3 413. 173.1
access1 Linux 2.4.20- 717. 659. 148. 362.4 413.2 139.6 127.1 418. 173.0
Memory latencies in nanoseconds - smaller is better
(WARNING - may not be correct, check graphs)
---------------------------------------------------
Host OS Mhz L1 $ L2 $ Main mem Guesses
--------- ------------- ---- ----- ------ -------- -------
access1 Linux 2.4.20- 868 3.456 8.0760 181.1
access1 Linux 2.4.20- 868 3.457 8.0670 153.2
access1 Linux 2.4.20- 868 3.456 8.0760 154.1
access1 Linux 2.4.20- 868 3.456 8.0740 153.3
access1 Linux 2.4.20- 868 3.455 8.0650 153.8
============================================
PAVAN KUMAR REDDY N.S.
Sr.Software Engineer
Wipro Technologies
53/1, Hosur road, Madivala
Bangalore - 68.
Phone Off: +91-80-5502001-8 extn: 6087.
Res: +91-80-6685179
http://www.wipro.com/linux/
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