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SubjectSLOW filesystem
Date

Note:
This has NOTHING to do with DOS, just the msdosfs filesystem!
Be careful when you screen out junk, this may affect umsdos even.
(the DOS timings have been omitted because they confused people)

PROBLEM:
Linux mtools is 4 times faster than the Linux msdosfs filesystem.


Linux 1.2.13 and 1.3.77
Most recent mtools
8 MB RAM
DOS filesystem

Standard 1.44 MB floppy drive with 650 kB file
-- or --
100 MB removable SCSI hard drive with 4.2 MB file

In both cases mtools can copy the file in 1 minute:
mcopy e:1-3-77.tgz e:TESTFILE.TMP
mcopy a:bigfile.tmp a:TESTFILE.TMP

In both cases the mounted msdosfs filesystem takes 4 minutes:
cp /zip/1-3-77.tgz /zip/testfile.tmp
cp /floppy/bigfile.tmp /floppy/testfile.tmp


When you time this, be sure to include the time required to
finish the job - you may need to umount the filesystem.


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