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SubjectPerformance changes in 1.3.*
Date
Hi all,
this is a small table I compiled to compare the performance development
of the Linux kernel over the 1.3 series. Especially the xbench tests have
a few gaps, but I think the general trend towards an improved performance
is quite obvious.
My comments are mostly guesses to explain the changes in the numbers. If
somebody has better explanations, feel free to correct me.

Hardware:
CPU : i486/66
RAM : 16M
SCSI : NCR 53c810
HD : QUANTUM MAVERICK 540S
video : ATI Mach64

Software:
bm : BYTE Unix Benchmarks Version 3.6 -- 5/15/91 (as found on tsx-11)
statically linked ELF binaries compiled with gcc 2.6.3
xbench : patched version
dynamically linked ELF binary compiled with gcc 2.7.0 and
gcc 2.7.1 snapshots
X : XFree86 3.1.2 self compiled with gcc 2.7.0

+---------------+--------+-----+----------------------------------------+
| OS Version | xbench | bm | Comment |
+---------------+--------+-----+----------------------------------------+
| Linux-1.2.09 | 149882 | 4.1 | old scheduler, old UNIX domain sockets |
| Linux-1.2.09k | 151112 | 4.3 | orig. kswap patches applied |
| Linux-1.3.08 | | 3.9 | |
| Linux-1.3.11+ | | 4.3 | improved scheduler |
| Linux-1.3.14 | | 4.7 | improved fork(2)/clone(2) ??? |
| Linux-1.3.17 | | 5.0 | |
| Linux-1.3.18 | | 5.0 | |
| Linux-1.3.29 | 121501 | 5.0 | new UNIX domain sockets |
| Linux-1.3.30 | | 4.9 | |
| Linux-1.3.34 | | 4.9 | |
| Linux-1.3.35 | 145499 | | |
| Linux-1.3.36 | | 4.9 | |
| Linux-1.3.38 | | 5.7 | kswap patches in ??? |
| Linux-1.3.39 | 151284 | 5.5 | |
| Linux-1.3.41 | 154599 | 5.6 | libc-5.2.13 with native readv/writev |
| Linux-1.3.42 | 150920 | 5.7 | |
| Linux-1.3.43 | 153943 | 5.8 | |
| Linux-1.3.45 | 154134 | 5.7 | |
| Linux-1.3.46 | 152350 | 5.8 | |
| Linux-1.3.48 | 152328 | 5.6 | |
| Linux-1.3.48+ | 154572 | 6.5 | new buffer/paging code |
| Linux-1.3.57 | 154161 | 6.7 | kswapd |
| Linux-1.3.66 | 134071 | 6.9 | |
| Linux-1.3.67 | | 7.0 | |
| Linux-1.3.68 | 132726 | 7.3 | |
| Linux-1.3.69 | 130888 | 7.2 | |
| Linux-1.3.72 | 132468 | 7.3 | |
| Linux-1.3.73 | | 7.1 | |
| Linux-1.3.74 | 147205 | 7.1 | |
| Linux-1.3.76 | 132053 | 7.3 | |
| Linux-1.3.77 | 154190 | 7.4 | |
| Linux-1.3.78 | | 7.4 | |
| Linux-1.3.79 | | 7.6 | |
+---------------+--------+-----+----------------------------------------+
--
Best regards
Joerg
--------------------------------------------------------------------------------
Joerg Pommnitz, ARTe Team, IBM Scientific Center Heidelberg, Germany
Mail1: pommnitz@heidelbg.ibm.com
Mail2: jpo@vnet.ibm.com
Tel. : Germany (06221) 59 3609


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