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Forum Discussion
Post your performance results
I thought it might be interesting to see what kind of performance everyone is getting with IO Meter so that we can compare what we're getting. So I thought we could all post our results in this thread...
I've yet to test my Pro Pioneer on a network, I really wanted it to provide services more than remote file systems.
I've just upgraded from the stock 1Gig (4-5-5-15 667MHz) to 4Gig (6-8-8-18 800MHz) and I've seen some surprising speed boosts with raw IO to the disks..
Using hdparm -t -T /dev/c/c
Before upgrading RAM:
Timing cached reads: 1890 MB in 2.00 seconds = 945.13 MB/sec
Timing buffered disk reads: 510 MB in 3.00 seconds = 170.11 MB/sec
After upgrade:
Timing cached reads: 2350 MB in 2.00 seconds = 1175.62 MB/sec
Timing buffered disk reads: 550 MB in 3.00 seconds = 183.07 MB/sec
That equates to a 7% improvement buffered read and a 24% improvement cached read!
It would be really interesting to see how this NAS performs with load balanced Ethernet tests and multiple hosts but (without seriously trivial hacking) this feature is limited to the business model (frankly I think that is insulting on a $1400 NAS.. QNAP don't charge extra for load balancing or iSCSI :neener: )
Needless to say, I was surprised (and pleased!!) that a ram upgrade produced such an improvement! Best $60 spent!
There were some other performance questions:
Why a 32bit kernel? Not sure if 64bit would be better, but for TB systems I'd have though it possibly might be?
Why no hyper-threading. The Core2 Duo chip has two cores both used by the system. Both cores support hyper-threading but the kernel lacks support (it is turned off) Why wouldn't hyper-threading be enabled. I appreciate it is a minimal performance boost, but still..
I've just upgraded from the stock 1Gig (4-5-5-15 667MHz) to 4Gig (6-8-8-18 800MHz) and I've seen some surprising speed boosts with raw IO to the disks..
Using hdparm -t -T /dev/c/c
Before upgrading RAM:
Timing cached reads: 1890 MB in 2.00 seconds = 945.13 MB/sec
Timing buffered disk reads: 510 MB in 3.00 seconds = 170.11 MB/sec
After upgrade:
Timing cached reads: 2350 MB in 2.00 seconds = 1175.62 MB/sec
Timing buffered disk reads: 550 MB in 3.00 seconds = 183.07 MB/sec
That equates to a 7% improvement buffered read and a 24% improvement cached read!
It would be really interesting to see how this NAS performs with load balanced Ethernet tests and multiple hosts but (without seriously trivial hacking) this feature is limited to the business model (frankly I think that is insulting on a $1400 NAS.. QNAP don't charge extra for load balancing or iSCSI :neener: )
Needless to say, I was surprised (and pleased!!) that a ram upgrade produced such an improvement! Best $60 spent!
There were some other performance questions:
Why a 32bit kernel? Not sure if 64bit would be better, but for TB systems I'd have though it possibly might be?
Why no hyper-threading. The Core2 Duo chip has two cores both used by the system. Both cores support hyper-threading but the kernel lacks support (it is turned off) Why wouldn't hyper-threading be enabled. I appreciate it is a minimal performance boost, but still..
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