Hello Lev, Saturday, December 8, 2018, 2:13:03 PM, you wrote: > I've checked all "standard" places — CPU is not throttling, SSD looks > perfectly Ok according to SMART and there is no complains from AHCI driver > about timeouts and such, system doesn't start to use swap. ZFS ARC was checked too. Here is statistics from top when single-job kernel build is in action. A lot of free memory, small ARC, too much CPU is consumed by interrupts, but there is free CPU clocks: last pid: 19488; load averages: 7.03, 5.35, 5.10 up 0+14:43:04 15:09:55 417 threads: 7 running, 395 sleeping, 15 waiting CPU 0: 50.0% user, 0.0% nice, 0.0% system, 16.4% interrupt, 33.6% idle CPU 1: 16.4% user, 0.0% nice, 16.8% system, 0.0% interrupt, 66.8% idle CPU 2: 0.0% user, 0.0% nice, 33.2% system, 0.0% interrupt, 66.8% idle CPU 3: 33.2% user, 0.0% nice, 33.2% system, 0.0% interrupt, 33.6% idle Mem: 28M Active, 315M Inact, 2076K Laundry, 2541M Wired, 1129K Buf, 5031M Free ARC: 1025M Total, 197M MFU, 415M MRU, 514K Anon, 20M Header, 392M Other 189M Compressed, 563M Uncompressed, 2.98:1 Ratio Swap: 16G Total, 16G Free -- Best regards, Lev mailto:lev_at_FreeBSD.orgReceived on Sat Dec 08 2018 - 11:13:20 UTC
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