Abnormal read speeds on BootCamp
Hey. I've been getting extremely slow read and write speeds on some operations while using my iMac running Windows 10.
Look at that extremely slow read and write speeds when accessing random 4KiB files. It literary takes more than two seconds just to do a refresh on the desktop. Not to mention that it also takes at least one and a half seonds just to list the drives under My computer.
Here's the full report of the speed test:
-----------------------------------------------------------------------
CrystalDiskMark 5.1.0 x64 (C) 2007-2015 hiyohiyo
Crystal Dew World : http://crystalmark.info/
-----------------------------------------------------------------------
* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
* KB = 1000 bytes, KiB = 1024 bytes
Sequential Read (Q= 32,T= 1) : 114.952 MB/s
Sequential Write (Q= 32,T= 1) : 112.264 MB/s
Random Read 4KiB (Q= 32,T= 1) : 1.073 MB/s [ 262.0 IOPS]
Random Write 4KiB (Q= 32,T= 1) : 1.076 MB/s [ 262.7 IOPS]
Sequential Read (T= 1) : 115.971 MB/s
Sequential Write (T= 1) : 113.034 MB/s
Random Read 4KiB (Q= 1,T= 1) : 0.482 MB/s [ 117.7 IOPS]
Random Write 4KiB (Q= 1,T= 1) : 1.077 MB/s [ 262.9 IOPS]
Test : 1024 MiB [C: 21.3% (49.8/233.9 GiB)] (x5) [Interval=5 sec]
Date : 2015/12/25 20:59:07
OS : Windows 10 Professional [10.0 Build 10586] (x64)
Anyone else having terrible speeds on their late 2015 5k iMacs?
Cheers,
Szabolcs
iMac, OS X El Capitan (10.11.1), Boot Camp 6.0
