07-26-2012 06:43 AM - edited 07-26-2012 06:45 AM
Seagate ST1000DM003 1TB drive (4K sectors, SmartAlign)
Windows XP SP3
Cloned older SATA 250GB drive to new 1TB drive.
(beginning of drive, 200GB partition, 9ms access times).
GENERAL: Responsiveness in WindowsXP was ok-ish, not what I expected going from a SATA-I 250GB drive to a fast SATA-III 1TB drive. Drive speeds tested fine in HD Tune.
HIBERNATE: putting the PC in hibernate (2GB RAM in use) was *SLOW*, resuming was *REALLY SLOW*
(more than 1 minute, probably around 2 or 3 minutes).
Defragged the hibernation file, toyed around a bit with SATA drivers etc.
(although this shouldn’t be a problem, hibernate was fast enough with the old 250GB drive).
I couldn’t figure out why this hibernate thing was so slow, so after trying many things I aligned the drive with Paragon Alignment software.
(after checking the partitions weren’t aligned with Disk Alignment Test, nice tool).
Lo and behold, hibernate works fast again! Like it used to with the older drive.
Conclusion: SmartAlign doesn’t solve all performance problems, align your 4K disks anyway!
08-06-2012 01:53 AM
08-07-2012 04:59 PM
I can understand your skepticism. It doesn't seem logical to me, but only after 4K aligning the drive, the hibernation performance was normal again.
The speed (MB/s) and seconds you mention might be a bit theoretical. Do you with what block size WinXP writes or reads the hibernation file? I don't.
Yes, the times were much too high. Putting the system into hibernation should take maybe 10 to 30 secs (4GB RAM usage max). Before aligning, it was much more.
Resuming from hibernation was even slower. Weird, i know, considering it is *reading* the file.
After trying many things, i resorted to the alignment software and couldn't believe it fixed the slow hibernation, but it did.
Nope, don't have any stopwatch timings for you. Just sharing my experience.
- the Windows XP hibernation file is not compressed. It's size is equal to the amount of RAM installed.
- firmware is CC4H, updated from CC4C.
08-07-2012 11:31 PM