Write rate of windows ?

[Elixer]

Was looking at the SMART of a MX100, and noticed it has racked up 274GB in writes.
Total hours on is 118.
That means ~2.3GB per hour in writes.

I can break that down to, ~30GB for initial clone, and ~5GB initial testing.
The rest is normal windows stuff going on.
All apps are on a HD.

SSD defrag is off, indexing is off, superfetch is also off, using win 8.1.
All I see is C:\$LogFile (NTFS Volume Log) always writing, via resource monitor.

This can't be normal, so, I am just wondering if anyone else has seen so many writes in so little time ?

 

[ignatzatsonic]

My 3 year average for my SSD, set up just about like yours, is 5 GB per day. My average operating day is 14 hours, so less than 1/2 gig per hour. I don't often do anything intensive, so maybe I'm a little below average in writes.

If it's a new installation, I wouldn't draw any immediate conclusions as Windows likes to do housekeeping.

If the installation is several months old, maybe that's another situation.

 

[Coup27]

This is certainly not normal and there must be something in the background causing all the writes. My power on hours is 740 and my total written is ~600GB which gives me an average of ~0.81GB an hour. Obviously my install is incorporated into that figure so the hourly average would be lower. This is on Windows 7.

I would keep an eye on resource monitor and see if you can identify the problem.

 

[corkyg]

Indexing can do a lot of writing.

 

[milee]

What OS version are you using? Is the host instance virtualized (do you use or have Hyper-V installed)?

$LogFile, $Mft, $BitMap, $Extend \ $UsnJrnl frequently write to the drives (especially to the OS drive), but won't accumulate 2GB/hour (more like .8GB/hour for the system drive and .1 for additional drives, idling.)

Things to investigate: the page file and the memory utilization, hibernation and other power management active options, applications (or even the OS) that logs frequently.

 

[Phynaz]

I can break that down to, ~30GB for initial clone

Was it cloned from a SSD or a HD? If from an HD you are best off with a clean install.

 

[Elixer]

Looks like I can automate this, by doing http://blogs.technet.com/b/yongrhee...hat-resource-monitor-resmon-exe-provides.aspx

Too bad windows don't have this built into resource monitor, where you can capture the output.