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1.7 slow while accessing the netapp drive


I've just compared the speed of 1.5 and 1.7 while accessing the drive of the type 'netapp'.

The results for cygwin-1.5 (DLL version: 1.5.25) follow:
> mount
    u: on /u type user (binmode)

> time ls -l /u
    ...
    real    0m1.063s
    user    0m0.046s
    sys     0m0.031s

And now the same test for cygwin-1.7 (CYGWIN_NT-5.1 1.7.0(0.206/5/3) 2009-03-11 14:08):
> mount
    U: on /u type netapp (binary,noacl,user)

> time ls -l /u
    ...
    real    0m2.140s
    user    0m0.061s
    sys     0m0.186s

The duration of 1.7 access to the netapp drive is the twice of 1.5.
Are there any reasons for this behavior?

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