On Wed, 1 Dec 2004 20:46:22 -0800
"David S. Miller" <davem@xxxxxxxxxxxxx> wrote:
> I'm more interested in simply things like "lat_connect"
> from lmbench run over loopback.
Oh, that was easy using OSDL PLM/STP which gives an easy way to run
local tests.
Baseline...
[STP 299123] lmbench_long results Kernel: patch-2.6.10-rc2 PLM # 3869
*Local* Communication latencies in microseconds - smaller is better
-------------------------------------------------------------------
Host OS 2p/0K Pipe AF UDP RPC/ TCP RPC/ TCP
ctxsw UNIX UDP TCP conn
--------- ------------- ----- ----- ---- ----- ----- ----- ----- ----
stp2-001 Linux 2.6.10- 8.270 38.6 24.3 61.6 48.5 45.9 76.6 74.6
stp2-001 Linux 2.6.10- 8.170 43.5 24.5 58.0 54.8 45.6 63.4 74.7
stp2-001 Linux 2.6.10- 2.740 50.6 29.9 40.3 48.3 59.8 75.1 101.
stp2-001 Linux 2.6.10- 8.140 46.6 29.7 57.6 48.8 45.5 72.0 74.4
stp2-001 Linux 2.6.10- 2.690 47.1 26.3 40.8 48.9 45.5 75.4 74.8
-----------------
Patched...
[STP 299118] lmbench_long results Kernel: tcp-port-randomization-2 PLM # 3907
*Local* Communication latencies in microseconds - smaller is better
-------------------------------------------------------------------
Host OS 2p/0K Pipe AF UDP RPC/ TCP RPC/ TCP
ctxsw UNIX UDP TCP conn
--------- ------------- ----- ----- ---- ----- ----- ----- ----- ----
stp2-001 Linux 2.6.10- 2.770 46.3 25.0 64.4 49.5 44.3 75.2 75.6
stp2-001 Linux 2.6.10- 2.780 44.1 21.2 63.5 55.6 45.3 63.5 75.2
stp2-001 Linux 2.6.10- 2.790 47.5 24.8 40.4 48.5 45.5 63.7 76.9
stp2-001 Linux 2.6.10- 8.330 47.5 24.8 40.7 55.6 44.6 63.8 75.1
stp2-001 Linux 2.6.10- 8.150 47.9 25.7 41.2 49.6 45.2 72.7 75.1
These are run on a relatively slow machine (2 way Pentium III 850Mhz)
and it looks like the results are no change (in the noise).
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