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I recently installed Cygwin (1.5.24(0.156/4/2)) on a new (dual-core) machine, and am seeing much slower performance than a February install of Cygwin on an older machine (no longer available for comparison, I'm afraid). I suspect it is a problem with disk IO, mostly because it is more noticable in software that does more file access. In particular, I see readv and writev getting errno 2 (ENOENT) frequently. For example: $ PAGER=cat strace man man | grep 'errno 2' | wc -l 422 I first blamed XFT, as it manifested itself most obviously when starting XFT applications; I now suspect that's just because they do a lot of file access on startup. XFT terminals (mrxvt, rxvt-unicode) run snappily after ~7 seconds startup time. xfd with an XFT font ends up with over 150k 'errno 2' lines in strace. I'm not sure how to further diagnose the problem. strace output is available at: http://nox.cx/cygwin -Zak
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