Post B5qCUV2DUCLW0yhSRU by DeweyOxberger@techhub.social
 (DIR) More posts by DeweyOxberger@techhub.social
 (DIR) Post #B5qBF2AIRNx0BAXaiG by azonenberg@ioc.exchange
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       Weird things that happen when you have a 100GbE pipe to your desk. 8 Gbps of sustained network traffic and the network monitor is like "yeah you're not using much bandwidth"Also I think there's a 32-bit overflow or something in xfce4-netload-plugin because the rate shows 0.00 Mbps when I get above some threshold (not sure what it is exactly but it's in the 15-40 Gbps range)
       
 (DIR) Post #B5qCUV2DUCLW0yhSRU by DeweyOxberger@techhub.social
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       @azonenberg 100Gb? That's like the entire world's supply of trained electrons. Better get more of em trained up!
       
 (DIR) Post #B5qCjgD4Dh9R180uUy by azonenberg@ioc.exchange
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       @DeweyOxberger They're in good company I have two 100G and five 40G links lit up in my LAN at the moment (and six 10G... no 25G at the moment and more 1G than I feel like counting right now)
       
 (DIR) Post #B5qDFo9OERoyuZc6KG by pikhq@social.treehouse.systems
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       @azonenberg that sounds like it'd make for a fun bug report for the xfce folks :p
       
 (DIR) Post #B5qDFoaKcHN8G8DcJs by azonenberg@ioc.exchange
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       @pikhq i'm pretty sure what is happening (not having dug into the code yet) is that it looks at ifconfig stats each update interval, default 4 Hz, and subtracts to calculate bits per second.and probably uses an int32 temporary somewhere in the process
       
 (DIR) Post #B5qDIegnrf7oRAbGqG by azonenberg@ioc.exchange
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       @pikhq i suspect running an ultra-lightweight DE on a machine with 128 CPU cores, half a TB of RAM, and a 100G NIC is not a common use case :p
       
 (DIR) Post #B5qEicR6xpFCvtCkaW by azonenberg@ioc.exchange
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       @pikhq ok yeah I'm certain now. played around with bandwidth limited iperf3 and the bug kicks in almost exactly at 17.1 Gbps which is 2^31 bytes per second
       
 (DIR) Post #B5qF3mb4NkmGWhxEGG by azonenberg@ioc.exchange
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       @pikhq And it's fixed upstream 8 months ago https://gitlab.xfce.org/panel-plugins/xfce4-netload-plugin/-/commit/89a1e888f6664826e3a2f2bcdf366fd39fcfa001Guess i'll see if i can backport that diff to the debian packaged version that's probably the easiest
       
 (DIR) Post #B5qFoVLILqVQchr2NU by azonenberg@ioc.exchange
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       yep that's exactly what it was... backported the upstream fix (from only 8 months ago) to the debian packaged version and it's happy now even when saturating 100G
       
 (DIR) Post #B5r3oKSBpaMUYoBn96 by BenHM3@saint-paul.us
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       @azonenberg [That stable rate]: Proof we're living in the future.
       
 (DIR) Post #B5r4SpIQZvXrnfvx2m by azonenberg@ioc.exchange
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       @BenHM3 the future would be if that was internet bandwidth not LAN
       
 (DIR) Post #B5r4aKt1Wc75npdF8y by BenHM3@saint-paul.us
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       @azonenberg Token Ring & AppleTalk would like a word...