4 ms·
The common advice I've heard for jumbo frames is not to enable them unless you can do it for every devices on your LAN, and even then it's probably not worthwhi
by kstrauser 2y ago
The common advice I've heard for jumbo frames is not to enable them unless you can do it for every devices on your LAN, and even then it's probably not worthwhile outside specific situations like a separate iSCSI network or such.
I just now ran iperf3 from my Mac to my Synology without jumbo frames:
[ ID] Interval Transfer Bitrate Retr
[ 7] 0.00-10.00 sec 10.0 GBytes 8.61 Gbits/sec 0 sender
[ 7] 0.00-10.00 sec 10.0 GBytes 8.60 Gbits/sec receiver
Given how rarely I actually care to saturate the 10Gbit link, I'd rather use the slightly hypothetically slower default settings that are highly likely to work in all scenarios.
- akira2501 2y agoIt seems much more effective on plain 1000Base. It's the difference between 850Mb/s and 975Mb/s for me.
- kstrauser 2y agoThat surprises me a little. From the Wikipedia article[0] I'd expected jumbo frames to be only about 5% more efficient. [0] https://en.wikipedia.org/wiki/Jumbo_frame https://en.wikipedia.org/wiki/Jumbo_frame
- zamadatix 2y agoThat difference is due to your devices relatively poor at handling high pps workloads and not really related to the particular speed it's running at. You can certainly get more than 850 mbps on a 1000BASE-T link with standard MTU, on the order of ~100 mbps more.