raptor 20% cpu
- Thread starter ashagplz
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Deleted member 66701
Deleted member 66701
High I/O - it's the CPU that needs to give the data to the hard disk - faster HDD = higher CPU usage.
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It would help to know the specs of the machine it's running on, but my Velociraptor 300GB uses 0.6% CPU in HD Tune (i7 rig) so it seems a bit high.
spec:
core i7 [email protected] 6 gig ocz 12800 triple chanel
vista 64 bit
there are 3 other drives in this rig all under 3% cpu. The raptor is the c drive. I have a blazing velociraptor on this too with 2% cpu.
core i7 [email protected] 6 gig ocz 12800 triple chanel
vista 64 bit
there are 3 other drives in this rig all under 3% cpu. The raptor is the c drive. I have a blazing velociraptor on this too with 2% cpu.
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If your burst rate is also <100MB/sec I would guess it's your SATA drivers. The figures you have look like mine were originally (on ASUS P6T-D), I updated to intel drivers and saw an improvement, mainly CPU usage (significant reduction) and burst rate (50% higher) with a small improvement (2-3%) in transfer rate. I'm using AHCI with NCQ enabled. I first installed the Intel INF update utility, the RAID drivers (although I don't use RAID!) and the Matrix Storage Manager.
Driver version shown here:
I have 2 other drives hanging off the SAS ports under control of the Marvel 64xx/63xx drivers.
Driver version shown here:
I have 2 other drives hanging off the SAS ports under control of the Marvel 64xx/63xx drivers.
Last edited:
Read transfer rate
Transfer Rate Minimum : 10.0 MB/sec
Transfer Rate Maximum : 68.5 MB/sec
Transfer Rate Average : 58.4 MB/sec
Access Time : 8.8 ms
Burst Rate : 93.7 MB/sec
CPU Usage : 19.0%
actually ncq isnt enabled. now how do i enable that?
Transfer Rate Minimum : 10.0 MB/sec
Transfer Rate Maximum : 68.5 MB/sec
Transfer Rate Average : 58.4 MB/sec
Access Time : 8.8 ms
Burst Rate : 93.7 MB/sec
CPU Usage : 19.0%
actually ncq isnt enabled. now how do i enable that?
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You need AHCI mode set in BIOS first, then a registry tweak in Windows to use AHCI, then istall the Intel drivers etc. I think the option to use NCQ was then offered in the BIOS.
I spent a while messing with this as I *should* have installed my OS with AHCI already enabled - then the install picks up on AHCI and makes the correct registry entries for you. However I didn't, and making the change after install is a bit of a hack and I can't remember the precise series of steps I took. If you Google it you'll likely find the same tutorial I did.
I spent a while messing with this as I *should* have installed my OS with AHCI already enabled - then the install picks up on AHCI and makes the correct registry entries for you. However I didn't, and making the change after install is a bit of a hack and I can't remember the precise series of steps I took. If you Google it you'll likely find the same tutorial I did.