Re:Replacing a $3000/mo Heroku bill with a $55/mo server
by ValdikSS on Wednesday October 22, 2025 @09:08AM
(#45668522)
It's kind of solved since kernel 6.1 with MGLRU, see above.
Dirty buffer should also be tuned (limited), absolutely. Default is 20% of RAM, (with 5 second writeback and 30 second expire intervals), which is COMPLETELY insane. I limit it to 64 MB max usually, with 1 second writeback and 3 second expire intervals.
Dirty buffer should also be tuned (limited), absolutely. Default is 20% of RAM, (with 5 second writeback and 30 second expire intervals), which is COMPLETELY insane. I limit it to 64 MB max usually, with 1 second writeback and 3 second expire intervals.