4 ms·
Yes, indeed. The more ram available, the more pages are available as buffer cache, the more pronounced the system stalls are. Though in my example, the determin
by tremon 3y ago
Yes, indeed. The more ram available, the more pages are available as buffer cache, the more pronounced the system stalls are. Though in my example, the determining factor is available_memory/disk_write_troughput, while in your example it is available_memory/single_core_throughput (assuming the page scan is a single-thread process).
- mkhnews 3y agoDoes disabling transparent huge pages help any here ?
- tremon 3y agoHave not tried it, but I would not expect any difference. FAFAIK, transparent huge pages are only about organizing free/unused/allocated memory; in both mine and the parent's example, the issue isn't about memory management per se but about synchronous operations on data taking too long (I/O write in my case, cache cleanup for the GP).