Any idea how to make a fan in an HP laptop spin at lower temperatures? The fan in my Pavilion dm-1 only starts spinning when CPU reaches 75°C and enters full speed when the GPU also becomes 75°C. Which is strange because this CPU and GPU are one and the same thing.. an APU. And overheating freezes often happen at around 75-80°C.. which isn't too much of a headroom really. I'd rather have it kick in at 50-60°C already, but would like to avoid using the power of the soldering iron for it.. I've already lost a fan to that previously (current one is a spare part from AliExpress). Granted, my soldering experience was much less back then.. nowadays I can probably even solder 1206 SMD packages comfortably. But I don't want to risk it, and I've got experience with custom kernels anyway.. are there any fan speed governors in the kernel that you know of?

FWIW, fancontrol doesn't seem to be supported on this laptop, and neither is pwmconfig. Perhaps I'll have to stick to the electronics method after all? Given that it's just a 5V fan, I guess that I could feed it power by tapping some power from a USB rail and controlling its speed from an ATtiny85.. but inside the laptop there isn't enough space for that and I don't feel like freeing this hardware out of its laptop chassis yet (though that is on the list). Either way running at 60°C under no load is terrible.. some HP certified enganeering "feature" I guess...

>Raspberry Pi on 16GB SD card
>Plugs in 2 flash drives for space, one 8GB and one 32GB
>8GB is allocated entirely for swap
>32GB is separated into 3 partitions and /etc/fstab edited to mount them on /home, /opt and /usr
>Moves files to the proper partitions on stick
>Kernel panic on boot before keyboard is enabled, kernel panic data taller than screen
>No R/W FS for kernel to dump to
fuck my life

Any Elasticsearch gurus here? I have a box with too many young gen GCs (one per 2 or 3 seconds), and irregular, very long old gen GCs (One per several hours, taking around a minute and freeing about 2/3's of the old gen space) -- I was thinking changing the new gen ratio from 2/3 to something like 3/4 or 4/5.

However, after reading an elastic article about settings to never touch... I'm no longer so sure...

Only other option I was considering is going from CMS to G1GC to cut back on the old gen GC time... A minute long downtime for Elastic is rather problematic.

Any thoughts? The box is rather old - running Elastic 5.6 with 20 GBs of heap, 207 shards and 306k docs.

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