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Re: xargs problem


Christopher Layne wrote:

$ uname -a; uptime; time echo 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 | xargs -n1 >/dev/null
CYGWIN_NT-5.2 opteron 1.7.0s(0.165/4/2) 20070215 07:41:32 i686 Cygwin
 10:05:57 up 1 day, 11:10,  0 users,  load average: 0.00, 0.00, 0.00

real    0m5.185s
user    0m0.150s
sys     0m0.573s

[OT]


On an Opteron?! I get 1.1 seconds on a low-end Core 2 Duo with WinXP. Something else also the matter at your end. (Of course, my Linux box, on an older Core Duo, also does this in 0.085 seconds, so your Linux box is slow, too :-) ).

But process creation is well-known to be slow in Cygwin, for completely unavoidable reasons (having to emulate a nearly full layer of POSIX semantics *on top of* Windows processes, which are already slow(er) to start with).


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