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Subject2.1.6 vs. 2.0.23
Date
Well, 2.1.6 compiles without problems (including sound support), so I
did some benchmarking against 2.0.23.

NOTE: I'am running 2.0.23 with Robert L. Krawitz's fast-pentium-memcpy
patch, so the results for 2.0.23 may be a little bit better than
expected.

System is a ASUS TP4XE board, 256 K PB cache, P133 with 64 megs RAM.

-------------------------------------------------------------

L M B E N C H 1 . 0 S U M M A R Y
------------------------------------

Processor, Processes - times in microseconds
--------------------------------------------
Host OS Mhz Null Null Simple /bin/sh Mmap 2-proc 8-proc
Syscall Process Process Process lat ctxsw ctxsw
--------- ------------- ---- ------- ------- ------- ------- ---- ------ ------
darkstar Linux 2.1.6 133 1 0.9K 7.2K 20K 148 7 12
darkstar. Linux 2.0.23 133 3 0.9K 7.0K 19K 167 7 10

*Local* Communication latencies in microseconds
-----------------------------------------------
Host OS Pipe UDP RPC/ TCP RPC/
UDP TCP
--------- ------------- ------- ------- ------- ------- -------
darkstar Linux 2.1.6 24 175 359 233 449
darkstar. Linux 2.0.23 31 182 347 241 466

*Local* Communication bandwidths in megabytes/second
----------------------------------------------------
Host OS Pipe TCP File Mmap Bcopy Bcopy Mem Mem
reread reread (libc) (hand) read write
--------- ------------- ---- ---- ------ ------ ------ ------ ---- -----
darkstar Linux 2.1.6 43 16.7 41.5 66.5 43 40 73 83
darkstar. Linux 2.0.23 35 15.1 46.0 64.8 43 40 73 83

Memory latencies in nanoseconds
(WARNING - may not be correct, check graphs)
--------------------------------------------
Host OS Mhz L1 $ L2 $ Main mem TLB Guesses
--------- ------------- --- ---- ---- -------- --- -------
darkstar Linux 2.1.6 132 7 108 182 426
darkstar. Linux 2.0.23 132 7 101 182 428

-----------------------------------------------------------------------

--
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# http://www.ping.at/members/alexa/ powered by Linux 2.0 #
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