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Re: hyperthreading fix, try #1
Volker Bandke wrote:
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a) Your test case fails on my machine as well, right at the
b) I seem to remember that there was/is a separate problem with "make
- -j", even on non-hyperthreasd machines. Unfortunately I cannot
search the mailing list right now due to some error (that possibly
has to do with cygwin.com's earlier breakdown. I do remember a
sentence somewhere like "We don't recommend that you use 'make -j' as
it seems to be broken"
c) Running your testcase with '-j1' instead of '-j2' does not fail on
Thanks for you info Volker. Here's what I've figured out:
This test does fail (in the same way) on non-hyperthreaded machines
(Win2000Pro on a PIII). But, this is a regression from 1.5.12 (that
test runs fine on the non-HT machine with 1.5.12. There was (maybe
still is) a problem with running "make -j" without the max task counter,
but "make -j2" has always worked very well on non-ht machines.
I will try out some other snapshots and see if I can narrow down the
time when this showed up later today.
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