F5F Stay Refreshed Power Users Networks 10GbE connection problem, speeds limited in one direction

10GbE connection problem, speeds limited in one direction

10GbE connection problem, speeds limited in one direction

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AGLOS6
Member
184
05-05-2016, 11:24 PM
#11
You misinterpreted the data. The 1.15GB (9.2Gbit) figure is close to the upper limit you'd see on a 10Gbit connection—it only improves with larger frames and isn't worth the complications that might arise. The confusing aspect is the opposite direction being slower, which I also notice when connecting two Linux machines. I don’t mind it much; usually my NVMe storage handles small files well, and big files move to slower SATA SSDs, so it doesn’t affect me. Still, it’s interesting how performance remains consistent in both directions now that I upgraded to 10Gbit, though I had to switch to parallel threads to reach the full speed.
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AGLOS6
05-05-2016, 11:24 PM #11

You misinterpreted the data. The 1.15GB (9.2Gbit) figure is close to the upper limit you'd see on a 10Gbit connection—it only improves with larger frames and isn't worth the complications that might arise. The confusing aspect is the opposite direction being slower, which I also notice when connecting two Linux machines. I don’t mind it much; usually my NVMe storage handles small files well, and big files move to slower SATA SSDs, so it doesn’t affect me. Still, it’s interesting how performance remains consistent in both directions now that I upgraded to 10Gbit, though I had to switch to parallel threads to reach the full speed.

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AskedRumble52
Member
216
05-06-2016, 04:47 AM
#12
Checking CPU, memory, and disk activity on the unraid machine during file transfers is possible.
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AskedRumble52
05-06-2016, 04:47 AM #12

Checking CPU, memory, and disk activity on the unraid machine during file transfers is possible.

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MaddyForce18
Member
93
05-06-2016, 12:11 PM
#13
I support this request. Going beyond 10gbit might strain the Unraid setup (CPU, memory or disk) in one direction. Keeping an eye on the system during execution could reveal a bottleneck. Also, according to "Alex Atkin UK," 10gbit is theoretical, while 6Gbit remains quite solid performance.
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MaddyForce18
05-06-2016, 12:11 PM #13

I support this request. Going beyond 10gbit might strain the Unraid setup (CPU, memory or disk) in one direction. Keeping an eye on the system during execution could reveal a bottleneck. Also, according to "Alex Atkin UK," 10gbit is theoretical, while 6Gbit remains quite solid performance.

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Pickkson
Member
174
05-06-2016, 04:22 PM
#14
On the Unraid server, CPU consumption stays below 10% during iperf tests. With two parallel streams or using -w 2000K, average usage reaches about 13%, yet performance remains at full capacity.
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Pickkson
05-06-2016, 04:22 PM #14

On the Unraid server, CPU consumption stays below 10% during iperf tests. With two parallel streams or using -w 2000K, average usage reaches about 13%, yet performance remains at full capacity.

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193over71
Member
169
05-07-2016, 04:54 AM
#15
It seems you're dealing with an unusual Linux kernel problem that might have occurred after a 5.x kernel update, though you're using Fedora. You haven't recorded the exact timing of the issue.
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193over71
05-07-2016, 04:54 AM #15

It seems you're dealing with an unusual Linux kernel problem that might have occurred after a 5.x kernel update, though you're using Fedora. You haven't recorded the exact timing of the issue.

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