>> Kurt Yoder wrote: <snip> > me@guest:~# vmstat 1 > procs -----------memory---------- ---swap-- -----io---- -system-- > ----cpu---- > r b swpd free buff cache si so bi bo in cs us sy id > wa > 1 0 2616 686488 7756 208004 0 0 2 34 10 3 0 1 99 > 0 > 1 0 2616 680280 7764 213920 0 0 0 0 106 8 7 93 0 > 0 > 1 0 2616 674076 7768 219768 0 0 0 0 104 5 8 92 0 > 0 > 1 0 2616 669000 7780 224864 0 0 0 15124 188 14 1 99 0 > 0 > 1 0 2616 663168 7788 230700 0 0 0 0 104 5 4 96 0 > 0 > 1 0 2616 657836 7792 235472 0 0 0 5684 139 21 5 95 0 > 0 > 1 0 2616 651648 7796 241288 0 0 0 0 104 5 7 93 0 > 0 > 1 0 2616 645428 7804 247136 0 0 0 0 104 5 2 98 0 > 0 > 1 0 2616 640956 7816 251908 0 0 0 22164 232 31 3 97 0 > 0 > 1 0 2616 635016 7820 257732 0 0 0 0 104 5 2 98 0 > 0 > 1 0 2616 629204 7828 263552 0 0 0 0 105 9 2 98 0 > 0 > 1 0 2616 622732 7832 269392 0 0 0 0 104 5 5 95 0 > 0 > 1 0 2616 616676 7840 275096 0 0 0 0 104 7 5 95 0 > 0 > 1 0 2616 612200 7852 279540 0 0 0 27872 263 39 1 99 0 > 0 > 1 0 2616 606384 7856 285204 0 0 0 0 105 7 3 97 0 > 0 > 1 0 2616 600536 7860 290716 0 0 0 0 104 11 7 93 0 > 0 > 1 0 2616 594352 7868 296408 0 0 0 0 104 7 9 91 0 > 0 BTW, for comparison I did the same test on the other KVM host/guest, and here is the vmstat -1: me@otherhost:/etc/apache2# vmstat 1 procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu---- r b swpd free buff cache si so bi bo in cs us sy id wa 3 0 55636 4520 956 37504 0 0 12 12 26 19 0 0 99 0 3 0 55636 3332 620 38516 0 0 0 81880 537 355 4 92 0 4 2 1 55636 3232 684 38508 0 0 8 56660 1708 550 2 97 0 1 2 1 55636 3200 764 38440 0 0 0 87696 409 271 4 96 0 0 2 1 55636 3096 852 38532 0 0 4 82824 394 254 4 95 0 1 3 1 55636 3072 848 38776 0 0 12 83520 429 293 8 91 0 1 3 1 55636 3204 536 38644 0 0 12 64856 1313 464 4 94 0 2 3 1 55636 3088 620 38484 192 0 280 85632 467 314 5 94 0 1 2 1 55636 3180 684 38428 0 0 0 67368 1011 443 3 97 0 0 2 1 55636 3080 768 38456 148 0 220 81432 414 270 8 91 0 1 3 0 55636 3124 784 38952 0 0 16 80416 554 284 5 94 0 1 3 1 55636 3004 488 38968 0 0 4 57756 1195 439 4 96 0 0 1 0 55636 4208 556 37644 0 0 4 75680 545 336 6 92 0 2 1 1 55636 3296 644 38388 0 0 0 87024 299 339 3 97 0 0 2 1 55636 2992 724 38648 0 0 4 78792 293 341 4 92 0 4 3 1 55636 3164 804 38660 0 0 8 73648 462 369 4 83 0 13 2 0 55636 2988 492 39044 0 0 8 73168 492 424 3 86 0 11 So clearly there is something odd going on with the first one. It looks like it's CPU-bound, and this is throttling the IO? -Kurt -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html