September 20, 201213 yr Hi As the title says does CPU speed affect the transfer speed over the network to the unraid server? I currently have a gigabit network and my main machine and the server are connected to it with cat6 cables and both say there connected at gigabit speeds. I have a cache drive installed but the maximum I've ever seen it transfer from my main machine to the server with teracopy is 48MB/s, it usual stays at this speed but does fluctuate a bit going down to 24MB/s and sometimes lower Before the cache drive was installed 24MB/s was the average. My specs are in my sig.
September 20, 201213 yr I started a thread just the other day discussing this: http://lime-technology.com/forum/index.php?PHPSESSID=b3cf95f421eb905d06cc0734e8c381c1&topic=22633.0 From what I've seen so far, it does affect transfer speed, but only if the cpu is v. slow. My Athlon x4 throttles between 800mhz and 2200mhz. At 800mhz, speeds are slower. Anything over 1400mhz, and speeds are max. You can try to set your governor to performance (See other thread) and see if it makes a difference in your speeds... I would guess that at the very least, you won't see the dips to 24MB/s anymore... If you do, please post the results in the other thread as well. I'd like to get a number of samples together .
September 20, 201213 yr Author Was thinking if i updated my AMD Sempron 145 2.8GHz to a AMD Athlon II X2 250 3.0GHz, would i get better transfer speeds. Only ask as i transfer stuff to the server everyday and sometimes it can be quite a bit, if i can speed it up that process every little helps.
September 20, 201213 yr Unless you have a ton of plugins that are sucking juice, I highly doubt you'll see a difference. Try the test outlined in the other page. It's entirely possible that your cpu is simply throttling too low, and you just need to set the minimum frequency a bit higher (or set it to permanently be on performance)
September 21, 201213 yr Author Had a look in the CPU info page whilst i was copying some data to the array and it was jumping between 800 and 2800 the transfer mainly sat at 48MB/s though, did drop to 24MB and lower at a few points One thing i did notice though was when i fired up DC++ whilst copying data to the array and DC++ did its usual share scan on start up (It scans a 3TB Share) the speed of the transfer crashed out to to around 6.4MB/s and lower at times and the CPU ran at a constant 800, didnt see it go up. Is it normal to see a speed crash when copying to the array and trying to read from it at the same time or do i have another problem (new to unraid)?
September 21, 201213 yr Had a look in the CPU info page whilst i was copying some data to the array and it was jumping between 800 and 2800 the transfer mainly sat at 48MB/s though, did drop to 24MB and lower at a few points One thing i did notice though was when i fired up DC++ whilst copying data to the array and DC++ did its usual share scan on start up (It scans a 3TB Share) the speed of the transfer crashed out to to around 6.4MB/s and lower at times and the CPU ran at a constant 800, didnt see it go up. Is it normal to see a speed crash when copying to the array and trying to read from it at the same time or do i have another problem (new to unraid)? Yes, you need to replace your PC, since windows typically only does one transfer in one direction at a time on the LAN.
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