SATA's Native Command Queuing (NCQ) - Club CDFreaks

kg_evilboy · 03-04-2007

Does SATA's Native Command Queuing (NCQ) actually make a difference in performance?
I've used a lot of PATA and a lot of SATA drives and didn't really notice anything in real-world usage

*zhadoom* · 04-04-2007

NCQ is an implementation in SATA2 of a well know technique used 10+ years in SCSI drives. In real world apps theres no improvement. In server type applications when multitasking and simultaneous data access will be heavy NCQ will help to organize the flow of requests ( read /write ) between the drive controller and the SATA interface.

Resume: will benefit multitasks and multithreads apps ( data intensive )

03-04-2007	#1 (permalink)
kg_evilboy CD Freaks Boy Toy Join Date: Feb 2006 Location: Sneaker heaven Posts: 5,327	SATA's Native Command Queuing (NCQ) Does SATA's Native Command Queuing (NCQ) actually make a difference in performance? I've used a lot of PATA and a lot of SATA drives and didn't really notice anything in real-world usage __________________ My collection: 2x Plextor PX-716A 1.09, Lite-On SHW-16H5S @ 1635S YS0Z, Samsung TS-L632B TS01, Lite-On LTR-16101B TS0W, LG GCE-8527B 1.01 LG GSA-H10N @ H12N UJ12 (dead), BenQ DW1650 BCIC (sold) Canon Pixma iP4300 For details on my other (sneaker) collection, please PM me! (You must be into sneakers too to get your info ) Sneaker Fun Fact: When Circa was developing a pro shoe for Chad Muska, he requested a stash pocket to run the entire length of the tongue. When designers asked The Muska if he really needed that much stash room, he replied, “Yo, I gots a lotta weed to fit in there, man!” Code: T6 C1 L2(s)v h d++ a- w++ c+ y+ f+ t+ k s m1- q-

04-04-2007	#2 (permalink)
zhadoom CDFreaks Resident Join Date: Jan 2004 Location: Brasil - RS Posts: 1,069	Re: SATA's Native Command Queuing (NCQ) NCQ is an implementation in SATA2 of a well know technique used 10+ years in SCSI drives. In real world apps theres no improvement. In server type applications when multitasking and simultaneous data access will be heavy NCQ will help to organize the flow of requests ( read /write ) between the drive controller and the SATA interface. Resume: will benefit multitasks and multithreads apps ( data intensive ) __________________ My drives: BD-Writer LG GGW-H20L Samsung SH-S203B(SB04 FR FB EOPC) Samsung SH-W162C TS11 Samsung TS-H552U US09 Just for scanning BENQ 1620 B7W9 LG H42N@H44N RB01 - Region Reset by Ala42 LG H10A@H10N@H12N UJ13 LG H22N 1.02 LG H55N 1.06 LG GH22NP20 1.02 Sony AD-7190A@DH20A3P XV68 - EOHT - FB - FR - EOS / XV6D Sony G120A@165P6S MS0R Pioneer DVR-K17 Pioneer DVR-108 1.18 by nil:

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