On Wed, 2008-01-23 at 17:39 +0800, Dino Ming wrote: > 17:19:31.726127 fstat(11, {st_mode=S_IFREG|0600, st_size=2263, ...}) = 0 > 17:19:31.726193 pread(11, "Return-path: <[EMAIL PROTECTED]>\nE"..., > 4096, 0) = 2263 > 17:19:38.973282 pread(11, "", 1833, 2263) = 0
Is it spending 7 seconds trying to do the second pread(), or is Dovecot doing something else for 7 seconds? What does strace -T show as the time spent in syscalls? To me this looks like a problem with your network or your NFS server.
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