> On Sat, 7 Sep 2002, Paolo Ciarrocchi wrote:
>
> > Let me know if you need further information (.config, info about my
> > hardware) or if you want I run other tests.
>
> Would you be able to run the tests for 2.5.31? I'm looking into a
> slowdown in 2.5.32/33 which may be related. Some hardware info might be
> useful too.
>
>
Certainly, we have those in the STP data base, and here's a quick summary:
(Of course you can search these yourself ) The full reports have the hardware
summary also. see web links at the end. Full reports have each test run 5x.
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
--------- ------------- ---- ---- ---- ---- ---- ----- ---- ---- ---- ---- ----
stp1-000. Linux 2.5.33 1000 0.33 0.49 2.84 3.52 0.79 2.62 168. 1279 4475
stp1-002. Linux 2.5.32 1000 0.32 0.47 2.94 4.41 15.7 0.80 2.63 202. 1292 4603
stp1-003. Linux 2.5.31 1000 0.32 0.46 2.85 6.92 14.4 0.80 2.60 856. 2596 8122
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
--------- ------------- ----- ------ ------ ------ ------ ------- -------
stp1-000. Linux 2.5.33 1.530 4.1100 12.2 6.4700 136.4 32.7 136.2
stp1-002. Linux 2.5.32 1.590 4.2200 12.4 5.4000 139.1 26.6 136.7
stp1-003. Linux 2.5.31 1.830 46.4 142.6 47.5 141.7 47.6 141.2
*Local* Communication latencies in microseconds - smaller is better
-------------------------------------------------------------------
Host OS 2p/0K Pipe AF UDP RPC/ TCP RPC/ TCP
ctxsw UNIX UDP TCP conn
--------- ------------- ----- ----- ---- ----- ----- ----- ----- ----
stp1-000. Linux 2.5.33 1.530 5.320 10.7 13.8 30.5 19.3 42.1 65.3
stp1-002. Linux 2.5.32 1.570 5.456 11.3 14.2 31.3 21.1 42.6 67.4
stp1-003. Linux 2.5.31 1.810 7.377 14.9 50.5 173.7 117.1 263.8 414.
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
--------- ------------- ------ ------ ------ ------ ------- ----- -----
stp1-000. Linux 2.5.33 32.9 5.4600 117.0 13.3 1261.0 0.575 3.00000
stp1-002. Linux 2.5.32 34.0 5.9460 118.6 14.0 1265.0 0.619 3.00000
stp1-003. Linux 2.5.31 72.5 15.3 225.5 38.2 2062.0 0.657 4.00000
*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
--------- ------------- ---- ---- ---- ------ ------ ------ ------ ---- -----
stp1-000. Linux 2.5.33 699. 855. 68.0 407.9 460.1 168.5 157.8 460. 233.8
stp1-002. Linux 2.5.32 690. 297. 93.7 397.5 459.2 162.1 150.0 458. 233.1
stp1-003. Linux 2.5.31 145. 74.8 58.5 118.6 456.9 169.7 156.8 456. 269.0
Full list:
2.5.33 http://khack.osdl.org/stp/4925 -1cpu
http://khack.osdl.org/stp/4915 -1cpu
http://khack.osdl.org/stp/4932 -2cpu
http://khack.osdl.org/stp/4926 -2cpu
2.5.32
http://khack.osdl.org/stp/4758 -2cpu
http://khack.osdl.org/stp/4752 -2cpu
http://khack.osdl.org/stp/4751 -1cpu
http://khack.osdl.org/stp/4741 -1cpu
2.5.31
http://khack.osdl.org/stp/4302 -1cpu
http://khack.osdl.org/stp/4312 -1cpu
http://khack.osdl.org/stp/4313 -2cpu
http://khack.osdl.org/stp/4319 -2cpu
cliffw
OSDL
> - James
> --
> James Morris
> <jmorris@intercode.com.au>
>
>
> -
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