I have a EC2 server in AWS, 4CPU+16G ram, FreeBSD 10.2R. Use two command dd and vi: dd if=/dev/zero of=/.swap bs=1M count=8192 &
8589934592 bytes transferred in 117.074462 secs (73371549 bytes/sec) when dd run in background, input vi command to edit a small txt file "d.txt" at same time, and then write and quit immediately: /usr/bin/time vi d.txt 49.82 real 0.00 user 0.00 sys in top command show: 810 root 1 23 0 12344K 2524K wswbuf 0 0:04 5.76% dd 821 root 1 20 0 23448K 4092K wdrain 0 0:00 0.00% vi vi need almost 50 seconds to quit. any ideas? Huang Wen Hui _______________________________________________ freebsd-virtualization@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-virtualization To unsubscribe, send any mail to "freebsd-virtualization-unsubscr...@freebsd.org"