https://bugs.kde.org/show_bug.cgi?id=362617
Bug ID: 362617
Summary: High CPU usage when ktorrent running
Product: ktorrent
Version: 4.3.1
Platform: Kubuntu Packages
OS: Linux
Status: UNCONFIRMED
Severity: crash
Priority: NOR
Component: general
Assignee: joris.guis...@gmail.com
Reporter: kamilmro...@gmail.com
When I run ktorrent with 5 downloads, one core of my CPU is running on 100%.
When I look at process table ktorrent process shows either 4 or 5 % CPU usage
or disk sleep. Network history shows that data is downloaded only by few
seconds then there is a longer quiet period, again few seconds interval of
downloading and brake again. When I kill ktorrent the core that was running at
100% slows down to 3-2%. Moreover when I try to open help or settings in menu
bar, not only ktorrent but all system becomes unresponsive.
Reproducible: Always
Steps to Reproduce:
1. Launch ktorrent with few downloads
2.
3.
Actual Results:
Downloading only in short time intervals, high cpu usage
Expected Results:
continuous downloading, lower cpu usage
I disabled akonadi, here is lspci output:
00:00.0 Host bridge: Intel Corporation 3rd Gen Core processor DRAM Controller
(rev 09)
00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor
Graphics Controller (rev 09)
00:14.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family
USB xHCI Host Controller (rev 04)
00:16.0 Communication controller: Intel Corporation 7 Series/C210 Series
Chipset Family MEI Controller #1 (rev 04)
00:1a.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family
USB Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation 7 Series/C210 Series Chipset Family
High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI
Express Root Port 1 (rev c4)
00:1c.3 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI
Express Root Port 4 (rev c4)
00:1d.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family
USB Enhanced Host Controller #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation HM77 Express Chipset LPC Controller (rev
04)
00:1f.2 SATA controller: Intel Corporation 7 Series Chipset Family 6-port SATA
Controller [AHCI mode] (rev 04)
00:1f.3 SMBus: Intel Corporation 7 Series/C210 Series Chipset Family SMBus
Controller (rev 04)
02:00.0 Network controller: Qualcomm Atheros AR9462 Wireless Network Adapter
(rev 01)
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