> On 27 Oct 2025, at 06:35, Tim via users <[email protected]> wrote: > > When faced by the complete bog-down when something like Firefox started > paging, it struck me that too many applications expect unlimited memory > access, instead of handling things some other way. It could take a > prolonged fight to wrest control back once that started to happen. > Which didn't help by the keyboard and mouse not having enough priority > against other things.
Having zram-paging helps a lot, but is not a solution to not having enough memory for the work load you want to run. If you can add memory to your system. The OOM (out-of-memory) killer running to kill off processes that are using lots of memory is the last back stop. Paging to HDD or SSD with not stop the freezes, but may allow you to continue after idle pages have been paged out if OOM does not kill processes first. The kernel is configed to over-commit memory. That is to say allow processes to allocate more memory then the system has. The memory is only actually allocated by the kernel with it's written to or read by the process. In practice this works very well most of the time. You can configure the kernel to no longer over-commit, but expect processes that run happily today to start remove failed-to-allocate-memory errors. Barry
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