3 ms·
Operating systems keep files in ram In addition to memory allocation till they need the ram, so I think it should be mostly full all the time
by zaphirplane 3y ago
Operating systems keep files in ram In addition to memory allocation till they need the ram, so I think it should be mostly full all the time
- mrspuratic 3y agoUnused RAM ~= wasted RAM... Recently I had to troubleshoot a linux process that started segfaulting randomly. Having dealt with non-ECC bit flips before I took a copy of the binary (i.e. from the filesystem cache), dropped the caches, and compared and disassembled the binaries: a single bit flip resulted in an illegal instruction. Cost of investigating issues >>> cost of ECC
- jhugo 3y agoBut bit flips may not be noticed any time soon in the disk cache, and when they are later noticed, may be wrongly attributed to disk failure. It's a different failure mode than a bit flip in some source code that you are about to compile (which is far less likely to happen, due to that source code being a much "smaller target").