Messages in this thread |  | | Date | Tue, 24 Sep 1996 13:41:05 +0200 | From | Uwe Bonnes <> | Subject | Re: Prerelease of 2.1.0 |
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>>>>> "Linus" == Linus Torvalds <torvalds@cs.helsinki.fi> writes:
Linus> On Tue, 24 Sep 1996, Hans-Georg von Zezschwitz wrote: ... >> Another report about speed: >> >> Recompiling a clean pre2.1.0-tree with my configuration took: >> >> using Linux 2.0.21: 554.28user 36.98system 10:18.67elapsed 95%CPU >> (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs >> (0major+0minor)pagefaults 0swaps >> >> using Linux 2.1.0: 553.11user 36.07system 10:15.06elapsed 95%CPU >> (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs >> (0major+0minor)pagefaults 0swaps >> >> Well, that's 0,6%. Of cause, I can't claim that my single pass test >> has any relevance. Who Bever thinks, that this is very little, should >> consider that the German magazine c't was already delighted when >> Maple ran 10-15% faster using Linux instead of Windows.
Linus> Well, to be quite frank, I didn't expect all that much of a speed Linus> increase. After all, the segment override stuff is generally Linus> just a few clock cycles, and you end up spending more time just Linus> waiting for memory anyway (unless you have a slow machine, and Linus> then you have a slow machine ;)
But dosen't that free up an register for user usage. With ELF, we lost this register (giving a lot of programming freedom), could we get it back now?
Uwe Bonnes bon@elektron.ikp.physik.th-darmstadt.de
Institut fuer Kernphysik Schlossgartenstrasse 9 64289 Darmstadt --------- Tel. 06151 162516 -------- Fax. 06151 164321 ----------
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