On Thu, 25 Apr 2024, Alexandre Rossi wrote: > Hi, > > The example torrent is not available anymore. > > Downloading a torrent with transmission 4 from unstable does not use 100% > CPU core. > > Can you reproduce?
I have upgraded to 4.0.2-1 since then and I am now using the QT client. But using the updated torrent (see http://osm.cquest.org/torrents) top still reports Transmission using a full core: $ top -n1 | grep trans 10472 fgouget 20 0 3520476 328540 62496 S 118.8 1.0 330:01.80 transmi+ So 118% CPU. But in ps the CPU usage is stuck at 3.7%: $ ps aux | grep trans fgouget 10472 3.7 1.0 3520476 329364 ? Sl Apr19 329:41 /usr/bin/transmission-qt -session 10cae0c76f000170761859900000334600170_1710862333_885767 This is while downloading the current osm.pdf.torrent file at a reported 150 MB/s average speed (1200 Mbps). While this is a 1 Gbps Internet connection and it is indeed maxed out, that still at most 125 MB/s. So I think the data must be compressed and transmission is reporting the uncompressed data transfer rate. Also now that the transfer is complete transmission is back to 0% CPU usage. So maybe transmission was just kept busy by the fast transfer rate? (i7-4790K, verifying and uncompressing the data) > Special parameters? Nothing that I know of. I'm not limiting the download speed obviously. Here are some possibly relevant settings from ~/.config/transmission/settings.json: "alt-speed-enabled": false, "cache-size-mb": 4, "dht-enabled": true, "encryption": 1, "lazy-bitfield-enabled": true, "lpd-enabled": false, "peer-congestion-algorithm": "", "peer-limit-global": 240, "peer-limit-per-torrent": 60, "peer-socket-tos": "", "pex-enabled": true, "port-forwarding-enabled": true, "proxy-auth-enabled": false, "proxy-enabled": false, "queue-stalled-enabled": true, "queue-stalled-minutes": 30, "speed-limit-down-enabled": false, "speed-limit-up-enabled": false, "utp-enabled": true, -- Francois Gouget <fgou...@free.fr> http://fgouget.free.fr/ A particle is an irreducible representation of the Poincaré Group - Eugene Wigner
