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SubjectNew Benchmark tools, lookie looky........

DiskPerf /dev/hde
Device: Maxtor 91536H2 Serial Number: N200PGDD
LBA 0 PIO Read Test = 5.32 MB/Sec (46.98 Seconds)
LBA 1 PIO Read Test = 5.32 MB/Sec (46.99 Seconds)
Outer Diameter Sequential PIO Read Test = 5.29 MB/Sec (47.24 Seconds)
Inner Diameter Sequential PIO Read Test = 5.29 MB/Sec (47.28 Seconds)
LBA 1 PIO Write Test = 5.22 MB/Sec (47.86 Seconds)
Outer Diameter Sequential PIO Write Test = 5.21 MB/Sec (48.02 Seconds)
Inner Diameter Sequential PIO Write Test = 5.22 MB/Sec (47.89 Seconds)
LBA 0 DMA Read Test = 48.84 MB/Sec (5.12 Seconds)
LBA 1 DMA Read Test = 49.07 MB/Sec (5.09 Seconds)
Outer Diameter Sequential DMA Read Test = 26.53 MB/Sec (9.42 Seconds)
Inner Diameter Sequential DMA Read Test = 14.68 MB/Sec (17.03 Seconds)
LBA 1 DMA Write Test = 44.94 MB/Sec (5.56 Seconds)
Outer Diameter Sequential DMA Write Test = 14.72 MB/Sec (16.98 Seconds)
Inner Diameter Sequential DMA Write Test = 14.39 MB/Sec (17.38 Seconds)

These are all 4000 IO's at 128 blocks each or a total of 512,000 blocks.
Not to bad........

Now we can profile drives to super-charge the elevator!!

One catch, these tests require a native ATA-passthough and that will not
be included until 2.5.........

It is completely stable with the tested data-phases.

Cheers,

Andre Hedrick
The Linux ATA/IDE guy

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