L M B E N C H 2 . 0 S U M M A R Y
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Basic system parameters
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Host OS Description Mhz
--------- ------------- ----------------------- ----
agato Linux 2.4.18 i686-pc-linux-gnu 1677
agato Linux 2.4.18- i686-pc-linux-gnu 1679
Processor, Processes - times in microseconds - smaller is better
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Host OS Mhz null null open selct sig sig fork exec sh
call I/O stat clos TCP inst hndl proc proc proc
--------- ------------- ---- ---- ---- ---- ---- ----- ---- ---- ---- ---- ----
agato Linux 2.4.18 1677 0.16 0.29 1.90 2.86 16.4 0.48 1.45 111. 532. 2863
agato Linux 2.4.18- 1679 0.16 0.24 1.30 2.46 15.3 0.49 1.49 101. 509. 2764
Context switching - times in microseconds - smaller is better
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Host OS 2p/0K 2p/16K 2p/64K 8p/16K 8p/64K 16p/16K 16p/64K
ctxsw ctxsw ctxsw ctxsw ctxsw ctxsw ctxsw
--------- ------------- ----- ------ ------ ------ ------ ------- -------
agato Linux 2.4.18 0.660 0.9200 9.9000 3.2300 94.6 20.2 94.7
agato Linux 2.4.18- 0.680 0.9600 10.1 3.4100 93.9 19.6 94.0
*Local* Communication latencies in microseconds - smaller is better
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Host OS 2p/0K Pipe AF UDP RPC/ TCP RPC/ TCP
ctxsw UNIX UDP TCP conn
--------- ------------- ----- ----- ---- ----- ----- ----- ----- ----
agato Linux 2.4.18 0.660 3.247 5.37 10.4 22.4 15.9 31.5 53.1
agato Linux 2.4.18- 0.680 3.844 6.16 9.550 22.9 15.5 34.7 55.9
File & VM system latencies in microseconds - smaller is better
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Host OS 0K File 10K File Mmap Prot Page
Create Delete Create Delete Latency Fault Fault
--------- ------------- ------ ------ ------ ------ ------- ----- -----
agato Linux 2.4.18 407.0 0.336 1.00000
agato Linux 2.4.18- 31.0 12.3 88.5 22.5 399.0 0.439 2.00000
*Local* Communication bandwidths in MB/s - bigger is better
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Host OS Pipe AF TCP File Mmap Bcopy Bcopy Mem Mem
UNIX reread reread (libc) (hand) read write
--------- ------------- ---- ---- ---- ------ ------ ------ ------ ---- -----
agato Linux 2.4.18 1090 948. 218. 497.6 694.2 347.6 350.4 866. 610.7
agato Linux 2.4.18- 1032 960. 437. 489.1 706.7 326.6 329.9 869. 589.4
Memory latencies in nanoseconds - smaller is better
(WARNING - may not be correct, check graphs)
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Host OS Mhz L1 $ L2 $ Main mem Guesses
--------- ------------- ---- ----- ------ -------- -------
agato Linux 2.4.18 1677 1.787 11.9 122.1
agato Linux 2.4.18- 1679 1.787 11.9 121.8
Merci Fabien :-) (y'a juste 2 sauts de ligne en trop pour chaque ligne mais bon, c'est lisible)
Le noyau avec les patchs preempt et low latency, c'est le 2.4.18-
[^] # Re: Intéressant mais...
Posté par Serge Rossi (site web personnel) . En réponse à la dépêche Preemption Patch VS Low-Latency Patch. Évalué à 10.
Merci Fabien :-) (y'a juste 2 sauts de ligne en trop pour chaque ligne mais bon, c'est lisible)
Le noyau avec les patchs preempt et low latency, c'est le 2.4.18-