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From: Shankar Unni <shankarunni AT netscape DOT net>
Subject:  Re: xargs problem
Date:  Mon, 19 Feb 2007 13:04:38 -0800
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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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