qbittorrent / qBittorrent

qBittorrent BitTorrent client
https://www.qbittorrent.org
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Download bogs to near stop #15125

Closed strumf666 closed 3 years ago

strumf666 commented 3 years ago

Windows 10 21h1 i5 3450 8gb ram ssd for os 4tb toshiba for torrents 500/50 fiber qbt 4.3.5 64bit The issue is I can't download even near my full download speed; the torrent start ok, but then fills up the cache and bogs down to near halt. I tried increasing the cache size, but this only prolongs the time until it bogs down. Is my hardware too slow? The max download speed I can maintain is around 20mb/s when I raise the limit to 25mb/s or more, queued I/O jobs start to accumulate and average time in queue goes up after some time. image Even stranger, when the average time in queue get to around 5000ms write cache overload goes to ~90% and even if I pause the torrent queued I/O jobs and average time in queue doesn't fall down for quite some time. Queued I/O will then fall down after quite a while, but the average time in queue will continue to increase...

Seeker2 commented 3 years ago

The Toshiba 4 TB HDD may be downloading slowly because it's also being read from at the same time for seeding on other torrents.

Things will be even harder on the HDD if the torrents you download contain lots of smaller files instead of a handful of big files.

CrystalDiskMark is a benchmarking software to measure storage drive speeds. It's not uncommon for HDDs to not even manage 0.5 MegaBYTES/second read or write speeds in the most rigorous tests.

There may be no way around a slow HDD other than using it only for seeding...so consider buying a 2nd SSD for downloading torrents to and auto-moving from there to the HDD on completion. That may destroy the SSD in a couple years, but it'll be much quicker than what you have. Either that, or try limiting qBitTorrent's speeds to 10 MB/sec or less.

FranciscoPombal commented 3 years ago

Please read through https://github.com/qbittorrent/qBittorrent/blob/master/CONTRIBUTING.md and fill in the issue template properly. It is not optional.

strumf666 commented 3 years ago

Ok, I'll do that.

strumf666 commented 3 years ago

Bought an ssd, and it fixed the issue, so this can be closed.