D-Link Forums
The Graveyard - Products No Longer Supported => D-Link Storage => DNS-323 => Topic started by: gunrunnerjohn on October 05, 2010, 09:11:58 AM
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In my system, I don't think there's any mystery why the access is pretty slow.
DNS-323 gigabit connection, no jumbo frames, running NAS Tester 4.0 writing/reading 5 passes of 200mb files.
With the processor maxed out on both read and write, it's small wonder it doesn't do better than it does!
Running warmup...
Running a 200MB file write on drive Y: 5 times...
Iteration 1: 9.73 MB/sec
Iteration 2: 11.31 MB/sec
Iteration 3: 11.46 MB/sec
Iteration 4: 11.47 MB/sec
Iteration 5: 11.58 MB/sec
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Average (W): 11.11 MB/sec
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Running a 200MB file read on drive Y: 5 times...
Iteration 1: 12.48 MB/sec
Iteration 2: 12.25 MB/sec
Iteration 3: 12.91 MB/sec
Iteration 4: 12.58 MB/sec
Iteration 5: 12.69 MB/sec
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Average (R): 12.58 MB/sec
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Reading CPU Usage
(http://i726.photobucket.com/albums/ww264/gunrunnerjohn/Misc%20Graphics/DNS-323ReadingCPUUsage.jpg)
Writing CPU Usage
(http://i726.photobucket.com/albums/ww264/gunrunnerjohn/Misc%20Graphics/DNS-323WritingCPUUsage.jpg)
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But does it mean bottleneck, or simply that the 323 is putting all spare CPU resources to the task?
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Well, if it's out of processor capacity, it's out of processor capacity. :)
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100% utilization doesn't mean out of capacity, it just means everything is allocated.
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100% processor usage implies that faster transfers would take more than 100% of the available processor power. We're not talking memory usage, but rather processor usage. When you're out, you're out. Note that a very large part of it is consumed by SAMBA.
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not sure if it is due to use old linux kernel, updating it to the latest will probably increased its speed since new kernel is more efficient and comes with better support for hardware.
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Could be, but I suspect that's beyond my capabilities, I think that's a D-Link task. :)