Seagate Barracuda XT 2TB: SATA 6Gb/s Performance Preview

jmke · 29th October 2009, 17:28

See something strange, the read burst rate of 2766MB/s and write burst of 2705MB/s are incredible for single drive performance but like most synthetic test results, they are not a true indication of actual platform performance. The reason for these “outstanding” results is that Marvell’s latest driver allocates (dynamically) a portion of system memory for transfer cache operations. Intel’s own Matrix Storage Manager and JMicron’s latest driver set also utilize a similar approach. In fact, Windows 7 implements a similar type of caching at the kernel level that makes these driver optimizations redundant in some ways.

The Marvell controller is 19% slower than the Intel controller with the WD drive and 18% with the Seagate drive. The WD drive is up to 28% faster than the Seagate drive.

http://www.anandtech.com/storage/showdoc.aspx?i=3668

jmke · 29th October 2009, 17:29

since when do single HDDs require more than SATA 300 ?

29th October 2009, 17:28	#1
jmke Madshrimp Join Date: May 2002 Location: 7090/Belgium Posts: 79,022	Seagate Barracuda XT 2TB: SATA 6Gb/s Performance Preview See something strange, the read burst rate of 2766MB/s and write burst of 2705MB/s are incredible for single drive performance but like most synthetic test results, they are not a true indication of actual platform performance. The reason for these “outstanding” results is that Marvell’s latest driver allocates (dynamically) a portion of system memory for transfer cache operations. Intel’s own Matrix Storage Manager and JMicron’s latest driver set also utilize a similar approach. In fact, Windows 7 implements a similar type of caching at the kernel level that makes these driver optimizations redundant in some ways. The Marvell controller is 19% slower than the Intel controller with the WD drive and 18% with the Seagate drive. The WD drive is up to 28% faster than the Seagate drive. http://www.anandtech.com/storage/showdoc.aspx?i=3668 __________________ Last edited by jmke : 29th October 2009 at 17:30.

29th October 2009, 17:29	#2
jmke Madshrimp Join Date: May 2002 Location: 7090/Belgium Posts: 79,022	since when do single HDDs require more than SATA 300 ? __________________

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