I recently upgraded to 16.04 from 14.04. Somehow, this is the first time I've ever even noticed tracker, though it seems complaints have been forthcoming for years now.
Ever since the upgrade, a process called tracker-miner-fs is constantly eating CPU.
At this moment, from top :
top - 16:49:45 up 1 day, 3:20, 4 users, load average: 1.28, 1.85, 2.27
Tasks: 288 total, 2 running, 285 sleeping, 0 stopped, 1 zombie
%Cpu(s): 2.3 us, 8.6 sy, 23.5 ni, 65.6 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
KiB Mem : 3737272 total, 179160 free, 2017372 used, 1540740 buff/cache
KiB Swap: 9764860 total, 8125228 free, 1639632 used. 1148728 avail Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
7189 chintal 39 19 566244 9596 3884 R 104.9 0.3 1004:52 tracker-miner-f
8764 chintal 20 0 2387948 986.3m 68600 S 4.6 27.0 370:59.00 firefox
However, tracker itself claims it's not doing anything.
$ tracker status
Currently indexed: 4119 files, 135 folders
Remaining space on database partition: 111.4 GB (56.61%)
All data miners are idle, indexing complete
This CPU usage is more or less constant. System performance has been horrible, with persistently high load averages. This is, by the way, on an Intel i7.
This is also exacerbating an overheating issue which I began to see over the last three weeks of my use of 14.04 (Seen only on Ubuntu, not on Windows, and after over a year of constant and regular use had no issues), and the reason for my upgrade.
$ sensors
acpitz-virtual-0
Adapter: Virtual device
temp1: +85.0°C (crit = +108.0°C)
coretemp-isa-0000
Adapter: ISA adapter
Physical id 0: +86.0°C (high = +87.0°C, crit = +105.0°C)
Core 0: +82.0°C (high = +87.0°C, crit = +105.0°C)
Core 1: +82.0°C (high = +87.0°C, crit = +105.0°C)
asus-isa-0000
Adapter: ISA adapter
cpu_fan: 25500 RPM
temp1: +85.0°C
