Comment on attachment 21852 test results >==============================2.6.30============================== >ff@home-desktop:~$ dd if=/dev/zero of=./bigfile bs=1M count=15000 & >./fsync-tester >[1] 6958 >fsync time: 0.1025 >fsync time: 0.8720 >fsync time: 5.5800 >fsync time: 5.6179 >fsync time: 3.7413 >fsync time: 4.2393 >fsync time: 5.2596 >fsync time: 0.0985 >fsync time: 1.7070 >fsync time: 4.1414 >fsync time: 0.1577 >fsync time: 4.8191 >fsync time: 0.6993 >fsync time: 3.6732 >fsync time: 3.6963 >fsync time: 4.7696 >fsync time: 6.0947 >fsync time: 3.4383 >fsync time: 0.7583 >fsync time: 4.0760 >fsync time: 4.1786 >fsync time: 3.9886 >fsync time: 0.3802 >fsync time: 3.4182 >fsync time: 1.1262 >fsync time: 2.8425 >fsync time: 3.9217 >fsync time: 1.4758 >fsync time: 3.7798 >fsync time: 3.9234 >fsync time: 0.3557 >fsync time: 4.1882 >fsync time: 4.4526 >15000+0 records in >15000+0 records out >15728640000 bytes (16 GB) copied, 231.473 s, 68.0 MB/s >fsync time: 2.1747 >fsync time: 0.0820 >fsync time: 0.0774 >fsync time: 0.0299 >fsync time: 0.0268 >fsync time: 0.0282 >fsync time: 0.0277 >fsync time: 0.0270 >^C >[1]+ Done dd if=/dev/zero of=./bigfile bs=1M count=15000 > >ff@home-desktop:~$ 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 214308 1592368 6344 66260 1 5 253 653 611 592 15 5 73 7 > 0 0 214308 1592400 6344 66264 0 0 0 0 309 525 7 3 90 0 > 2 0 214308 1592448 6344 66264 0 0 0 0 365 686 5 3 91 0 > 0 0 214308 1592400 6344 66264 0 0 0 0 291 543 5 3 92 0 > 0 2 214308 1126216 6756 464876 0 0 24 398976 980 1265 7 36 37 > 20 > 0 4 214308 1107468 6780 489032 0 0 0 20524 671 551 9 5 35 51 > 0 6 214308 1118544 6780 489032 0 0 0 4 658 575 7 3 32 58 > 0 5 214308 1129752 6784 489032 0 0 0 4 646 578 6 5 36 53 > 0 4 214308 1142036 6784 489032 0 0 0 8 656 576 6 4 36 54 > 2 3 214308 1151708 6784 489032 0 0 0 0 590 501 8 3 16 72 > 0 1 214308 1156616 6792 491124 0 0 0 1572 587 485 7 3 29 60 > 0 2 214308 704504 7188 876836 0 0 0 392152 885 716 8 38 21 32 > 0 4 214308 637132 7252 942604 0 0 0 65728 666 494 7 10 0 83 > 0 4 214308 561368 7324 1016556 0 0 0 73984 686 499 7 12 0 81 > 0 4 214308 490020 7392 1086476 0 0 0 69920 693 537 7 10 0 83 > 0 4 214308 418224 7460 1156364 0 0 0 69888 686 490 9 9 0 82 > 0 3 214308 398752 7496 1177372 0 0 4 22316 781 500 6 7 7 80 > 0 4 214308 406700 7496 1177404 0 0 28 0 532 510 8 3 10 79 > 0 5 214308 416212 7516 1177528 0 0 160 8 645 550 6 4 14 76 > 0 4 214308 427788 7524 1177648 0 0 108 12 620 526 8 4 1 87 > 0 3 214308 437528 7536 1177688 0 0 56 0 674 651 6 5 0 89 > 1 2 214308 302288 7688 1321540 0 0 8 16 540 533 9 12 20 58 > 1 3 214308 15268 7536 1548008 0 0 56 391944 878 707 7 28 0 > 65 > 0 5 214308 15152 7372 1548204 0 0 96 69896 699 574 8 11 0 81 > 1 7 214308 15232 7420 1549092 0 0 220 45220 661 616 6 9 0 85 > 7 6 214308 14752 7544 1548616 0 0 640 82216 755 747 6 13 0 81 > 0 5 214308 15084 7620 1548232 0 0 24 65720 709 674 8 11 0 81 > 0 4 214308 17436 7636 1549072 0 0 284 8224 889 572 6 6 0 88 > 0 4 214308 17776 7660 1550176 0 0 100 1496 637 545 6 5 0 89 > 0 4 214308 27604 7684 1550280 0 0 132 0 606 513 7 5 0 88 > 0 4 214308 35192 7712 1550412 0 0 156 0 588 572 8 3 0 90 > 0 5 214308 44060 7744 1550820 0 0 480 0 681 683 6 6 0 88 > 0 3 214308 55500 7800 1551100 0 0 296 12 750 746 5 6 31 58 > 2 1 214308 13580 8028 1601036 0 0 1356 120 696 881 8 9 26 56 > 0 3 214308 15220 8316 1547984 0 0 0 381300 944 1397 7 39 18 > 37 > 0 5 214308 13560 8384 1550264 0 0 0 69944 769 536 7 10 0 82 >procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu---- > r b swpd free buff cache si so bi bo in cs us sy id wa > 2 5 214308 14424 8452 1549564 0 0 0 69888 739 508 6 9 0 85 > 1 5 214308 13952 8524 1549784 0 0 0 74016 719 527 7 12 0 81 > 0 3 214308 14468 8564 1549144 0 0 0 69920 781 576 6 12 1 81 > 0 3 214308 20844 8564 1549148 0 0 0 0 580 477 7 3 22 67 > 0 5 214308 28084 8568 1549144 0 0 0 8 659 498 7 3 36 54 > 0 3 214308 37388 8576 1549148 0 0 0 1764 605 555 8 5 12 76 > 0 3 214308 45184 8576 1549148 0 0 0 0 525 470 6 5 0 90 > 0 1 214308 58560 8576 1549148 0 0 0 12 811 623 8 5 5 81 > 0 3 214308 14952 8812 1592052 0 0 0 57644 637 804 6 25 37 32 > 0 2 214308 14012 8952 1549216 0 0 0 347944 1108 767 8 19 14 > 59 > 0 2 214308 15548 8964 1549476 0 0 0 5320 421 472 7 3 2 88 > 0 4 214308 28940 8964 1549476 0 0 0 12 694 466 7 5 11 77 > 0 4 214308 43720 8964 1549476 0 0 0 0 669 455 6 3 34 57 > 0 4 214308 56184 8964 1549476 0 0 0 0 714 437 6 4 36 54 > 0 4 214308 13704 8752 1594000 0 0 8 32772 889 834 4 28 30 38 > 0 3 214308 14292 8760 1592532 0 0 0 72228 720 1005 8 6 36 51 > 0 2 214308 15452 8680 1548660 0 0 0 301880 688 756 6 18 18 > 59 > 0 2 214308 24520 8680 1548660 0 0 0 0 618 443 7 4 25 64 > 0 3 214308 39648 8680 1548660 0 0 0 4 683 482 5 5 21 68 > 1 2 214308 52696 8684 1548660 0 0 0 12 583 602 6 5 35 53 > 3 0 214308 13620 8344 1599184 0 0 40 4 817 598 6 14 4 76 > 1 1 214308 14660 7476 1565564 0 0 112 276832 772 970 3 27 14 > 56 > 0 4 214308 14024 7544 1552748 0 0 4 145788 625 542 0 9 0 > 91 > 2 2 214308 13996 7596 1556652 0 0 4 28800 523 529 1 5 3 90 > 0 5 214308 14692 7692 1552168 0 0 4 115004 702 578 0 12 2 > 86 > 0 5 214308 17748 7744 1551596 0 0 8 41132 619 522 2 5 0 93 > 0 4 214308 15604 7808 1560576 0 0 204 0 631 537 0 6 0 94 > 0 3 214308 26272 7808 1560576 0 0 0 0 539 486 2 1 0 97 > 0 3 214308 38512 7816 1560576 0 0 0 1440 555 503 0 0 0 > 100 > 1 1 214308 50424 7816 1560576 0 0 0 0 465 497 2 0 27 71 > 3 2 214308 14948 8096 1595136 0 0 12 81980 816 866 0 25 42 32 > 0 3 214308 14936 8188 1550608 0 0 4 347056 643 579 2 15 15 > 69 > 1 3 214308 13788 8256 1552700 0 0 4 64168 599 476 0 7 0 93 > 0 3 214308 14436 8292 1551948 0 0 0 73920 657 567 2 10 11 77 > 1 2 214308 14452 8380 1551596 0 0 4 80780 795 529 0 10 0 90 > 0 3 214308 15284 8400 1552484 0 0 4 16384 390 461 2 2 36 60 >procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu---- > r b swpd free buff cache si so bi bo in cs us sy id wa > 0 2 214308 27336 8408 1552484 0 0 0 1688 631 507 0 1 10 88 > 0 2 214308 39496 8408 1552484 0 0 0 0 500 442 2 1 29 68 > 1 1 214308 53336 8408 1552484 0 0 0 0 616 503 0 1 44 55 > 1 2 214308 14904 8456 1602564 0 0 148 4 515 588 1 10 42 46 > 0 6 214308 14088 6968 1595120 0 0 1280 123568 793 1043 1 26 1 > 73 > 0 4 214308 15032 5900 1554300 0 0 1108 312700 695 1060 0 13 0 > 87 > 0 6 214308 19824 5904 1556772 0 0 192 0 465 459 0 1 0 99 > 0 4 214308 14432 5640 1554152 0 0 680 125936 698 583 0 14 0 > 85 > 1 4 214308 14268 4524 1556644 0 0 4 79152 627 536 0 9 0 91 > 0 4 214308 15472 4328 1557116 0 0 44 67104 653 512 2 9 0 89 > 0 3 214308 14192 4356 1557264 0 0 4 34360 869 524 0 4 0 96 > 0 3 214308 23236 4356 1557264 0 0 0 0 521 509 2 1 37 60 > 0 4 214308 34784 4364 1557264 0 0 4 12 536 499 0 1 32 68 > 0 4 214308 47144 4364 1557336 0 0 72 0 420 426 0 1 28 71 > 0 1 214308 62740 4368 1557336 0 0 0 16 677 727 3 1 30 68 > 0 1 214308 14492 4608 1604772 0 0 72 37004 608 779 8 21 41 30 > 0 3 214308 17452 4768 1600460 0 0 4 91240 801 740 6 20 7 67 > 0 2 214308 13752 4848 1557448 0 0 4 352920 1058 907 8 15 9 > 69 > 0 3 214308 20620 4848 1557444 0 0 0 0 618 478 6 4 30 60 > 0 3 214308 18152 4972 1556620 0 0 4 117476 743 575 2 14 2 > 82 > 0 4 214308 13708 5060 1557112 0 0 0 100632 848 556 1 11 19 > 69 > 3 4 214308 17728 5132 1556508 0 0 592 32928 650 580 1 4 0 95 > 0 4 214308 17744 5148 1559500 0 0 324 1388 626 543 0 2 19 79 > 0 4 214308 27648 5160 1559788 0 0 236 0 498 504 0 1 2 97 > 0 3 214308 41392 5160 1559920 0 0 140 0 566 592 2 1 8 89 > 0 1 214308 55464 5160 1559920 0 0 0 0 613 659 2 1 43 53 > 2 3 214308 13524 5464 1566192 0 0 8 286840 771 911 3 35 35 > 27 > 1 2 214308 14304 5536 1556740 0 0 4 138424 727 671 7 12 10 > 71 > 0 3 214308 15288 5604 1555804 0 0 4 78144 740 555 7 13 18 63 > 0 3 214308 14120 5680 1554992 0 0 0 84032 622 538 2 10 19 69 > 0 4 214308 15312 5720 1556812 0 0 4 49508 590 564 0 6 12 81 > 0 3 214308 18076 5764 1555236 0 0 0 41132 730 548 2 6 21 71 > 1 3 214308 29532 5768 1555236 0 0 0 1720 501 498 0 1 16 83 > 1 4 214308 41840 5772 1555256 0 0 20 0 612 566 6 4 24 66 > 0 1 214308 56008 5772 1555332 0 0 80 12 747 670 6 3 3 88 > 3 0 214308 13156 5952 1607880 0 0 4 172 609 625 8 16 35 41 >procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu---- > r b swpd free buff cache si so bi bo in cs us sy id wa > 1 4 214308 15264 6168 1553756 0 0 8 409604 877 936 5 30 29 > 36 > 0 3 214308 15940 6232 1554652 0 0 4 64624 604 571 2 9 13 75 > 1 2 214308 14836 6316 1555000 0 0 0 93280 682 535 0 13 0 87 > 2 3 214308 14840 6388 1554324 0 0 4 74644 618 515 1 8 3 87 > 0 2 214308 15460 6452 1555048 0 0 4 57504 736 537 0 6 15 79 > 0 3 214308 19076 6460 1556076 0 0 0 1632 672 487 7 4 39 50 > 0 4 214308 30076 6460 1556076 0 0 0 4 630 492 5 5 0 90 > 0 3 214308 42704 6464 1556076 0 0 0 12 569 475 3 2 19 76 > 0 2 214308 51996 6464 1556076 0 0 0 0 520 551 0 0 4 96 > 2 1 214308 13928 6584 1606556 0 0 4 16 532 625 1 10 38 50 > 0 2 214308 14848 6812 1596100 0 0 8 129312 765 897 0 22 22 > 56 > 0 4 214308 14632 6880 1553992 0 0 0 308888 701 662 7 13 0 > 80 > 0 4 214308 15096 6976 1553728 0 0 4 94592 716 592 5 14 0 81 > 0 4 214308 14700 7048 1554080 0 0 0 74048 700 570 7 11 0 82 > 0 4 214308 13780 7116 1555188 0 0 4 71092 685 538 7 10 0 83 > 0 3 214308 14964 7152 1554204 0 0 0 36944 918 502 7 7 0 86 > 0 4 214308 19908 7156 1554292 0 0 88 1532 565 514 6 4 0 90 > 0 4 214308 28984 7160 1554336 0 0 44 12 552 487 8 3 0 89 > 0 5 214308 37492 7160 1554452 0 0 116 36 610 539 6 5 21 68 > 0 2 214308 52188 7164 1554452 0 0 0 12 731 722 6 5 9 79 > 1 1 214308 14644 7304 1605148 0 0 4 8 509 594 6 13 37 44 > 0 1 214308 17204 7340 1597036 0 0 8 81928 678 707 7 15 36 42 > 0 2 214308 15036 7276 1553748 0 0 8 357892 807 848 7 23 37 > 33 > 0 4 214308 14800 7344 1554312 0 0 4 65824 713 585 8 11 9 72 > 1 3 214308 14808 7420 1554168 0 0 0 86340 739 575 7 13 0 80 > 0 4 214308 14004 7492 1554560 0 0 4 74016 639 531 2 8 0 89 > 0 3 214308 19856 7504 1554272 0 0 0 12320 596 506 0 2 29 68 > 0 3 214308 23068 7508 1554272 0 0 0 1476 668 489 1 1 14 83 > 0 3 214308 35408 7508 1554272 0 0 0 0 529 474 0 1 0 99 > 0 3 214308 46364 7512 1554272 0 0 0 12 521 457 1 1 12 86 > 0 2 214308 62656 7512 1554272 0 0 0 4 492 609 0 0 14 86 > 0 2 214308 15412 7680 1594804 0 0 32 94884 735 897 2 32 25 41 > 1 4 214308 14692 7744 1575932 0 0 0 194608 731 1150 0 14 34 > 52 > 0 3 214308 17144 7780 1554232 0 0 4 180920 572 517 2 7 22 > 70 > 1 2 214308 14296 7864 1553780 0 0 0 86432 587 514 0 10 46 44 > 0 3 214308 13692 7944 1554200 0 0 4 82304 620 578 2 8 9 82 >procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu---- > r b swpd free buff cache si so bi bo in cs us sy id wa > 0 4 214308 14068 8020 1553412 0 0 0 69900 746 633 0 8 22 71 > 0 4 214308 19652 8036 1553056 0 0 4 8224 472 540 2 3 0 96 > 0 3 214308 25872 8048 1554388 0 0 0 1456 731 634 0 1 0 98 > 0 3 214308 34260 8048 1554388 0 0 0 0 431 509 1 1 13 84 > 1 3 214308 46200 8048 1554388 0 0 0 0 525 539 0 0 23 76 > 0 1 214308 58964 8048 1554388 0 0 0 0 605 600 2 1 39 58 > 1 1 214308 14124 8136 1556832 0 0 8 333512 796 925 0 35 36 > 28 > 0 3 214308 14004 8072 1552952 0 0 4 99628 638 512 1 10 0 88 > 0 3 214308 14708 8020 1552224 0 0 0 74048 648 501 0 10 12 78 > 0 3 214308 14104 8100 1553228 0 0 4 75852 661 524 2 11 0 87 > 0 3 214308 15048 8040 1552704 0 0 0 65772 775 572 0 8 0 92 > 0 5 214308 21864 8044 1552888 0 0 4 36 441 477 2 0 0 97 > 0 4 214308 33624 8052 1552884 0 0 0 1700 541 524 0 0 0 > 100 > 0 3 214308 45344 8052 1552892 0 0 0 8 533 574 2 1 33 64 > 0 2 214308 57328 8052 1552892 0 0 0 0 537 561 0 1 33 67 > 2 1 214308 14412 8188 1600840 0 0 4 28688 583 749 2 18 41 39 > 0 2 214308 20020 8212 1595688 0 0 4 56132 754 587 0 6 21 73 > 1 1 214308 15360 8220 1552048 0 0 4 369572 841 905 2 23 6 > 69 > 0 3 214308 21504 8224 1552504 0 0 0 5344 423 421 0 2 28 70 > 0 3 214308 32504 8224 1552504 0 0 0 0 547 606 1 1 10 88 > 0 3 214308 45044 8224 1552504 0 0 0 0 513 427 0 1 0 99 > 1 2 214308 57088 8224 1552504 0 0 0 0 609 652 2 0 4 94 > 2 0 214308 16176 8216 1602536 0 0 8 16 651 602 0 16 28 55 > 0 2 214308 15432 8324 1594212 0 0 4 117376 746 789 2 16 7 > 76 > 0 3 214308 15028 8424 1550876 0 0 0 318200 632 621 0 18 1 > 81 > 0 3 214308 14672 8472 1553268 0 0 4 75828 630 571 2 9 17 71 > 0 3 214308 15204 8516 1553032 0 0 4 57568 622 475 0 10 18 73 > 1 3 214308 14388 8580 1553448 0 0 0 86368 674 567 2 12 26 60 > 2 2 214308 20152 8580 1553432 0 0 0 0 521 413 0 0 35 65 > 0 4 214308 21876 8588 1553432 0 0 0 1508 569 578 2 2 21 75 > 0 2 214308 36576 8592 1553428 0 0 0 4 550 416 0 1 35 64 > 0 1 214308 49388 8592 1553432 0 0 0 8 565 553 1 1 39 58 > 0 1 214308 21752 8652 1596876 0 0 4 36 387 460 1 5 51 44 > 0 2 214308 15584 8900 1593092 0 0 8 118212 838 1253 2 24 24 > 50 > 0 1 214308 15640 9016 1599208 0 0 4 4540 610 557 1 11 30 59 > 0 3 214308 13976 9080 1551688 0 0 0 392328 813 684 2 16 16 > 67 >procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu---- > r b swpd free buff cache si so bi bo in cs us sy id wa > 0 3 214308 15492 9120 1551696 0 0 4 42364 511 481 3 6 7 84 > 0 3 214308 13956 9204 1552296 0 0 4 82272 686 633 8 12 0 80 > 0 2 214308 16768 9236 1551476 0 0 0 53472 652 483 7 9 5 79 > 0 3 214308 27796 9236 1551476 0 0 0 0 673 583 7 4 29 60 > 0 3 214308 37796 9240 1551476 0 0 0 12 693 458 5 5 36 53 > 0 5 214308 44304 9252 1551476 0 0 8 1448 589 612 8 4 36 52 > 0 1 214308 59348 9256 1551472 0 0 0 4 731 614 6 4 3 87 > 0 3 214308 14708 9500 1595132 0 0 12 57356 696 947 8 26 23 43 > 1 1 214308 13588 9620 1554652 0 0 4 335112 829 756 9 20 12 > 60 > 0 3 214308 14964 9660 1550636 0 0 0 69192 705 554 1 6 10 82 > 2 2 214308 13688 9724 1554112 0 0 4 49324 571 571 0 6 7 86 > 0 2 214308 17120 9788 1549904 0 0 0 68184 615 659 2 8 16 73 > 0 3 214308 28960 9788 1549904 0 0 0 4 530 409 0 1 33 66 > 1 1 214308 40744 9792 1549904 0 0 0 12 540 498 1 2 25 72 > 0 2 214308 47964 9792 1549904 0 0 0 0 481 410 0 0 21 79 > 1 0 214308 15176 9920 1598424 0 0 4 4 690 677 2 11 44 43 > 0 2 214308 14808 10060 1593288 0 0 8 122856 793 1034 0 21 30 > 49 > 0 5 214308 14700 10136 1549124 0 0 28 314392 636 812 2 17 22 > 60 > 2 2 214308 14576 10192 1551960 0 0 168 70868 654 548 0 9 7 83 > 1 5 214308 15064 10228 1550548 0 0 320 77584 605 582 1 11 5 82 > 1 4 214308 13652 10300 1551720 0 0 144 69852 654 557 0 9 8 83 > 1 3 214308 14824 10316 1551632 0 0 184 45248 606 587 2 6 17 75 > 0 3 214308 17100 10332 1552116 0 0 492 12 734 511 0 1 10 89 > 0 4 214308 24752 10336 1552140 0 0 24 1432 462 503 1 1 4 93 > 0 5 214308 36596 10344 1552336 0 0 288 12 535 508 0 0 0 > 100 > 0 6 214308 48460 10400 1554488 0 0 2116 8 686 1024 2 1 7 89 > 1 2 214308 13784 10568 1602292 0 0 528 20 535 581 0 12 34 53 > 0 3 214308 15168 10736 1549184 0 0 336 359376 1141 1015 2 26 1 > 72 > 0 3 214308 15156 10760 1549976 0 0 72 21776 496 442 0 3 1 95 > 0 3 214308 29756 10768 1550304 0 0 268 0 653 533 2 1 6 92 > 0 3 214308 38128 10776 1550776 0 0 492 0 536 448 0 1 4 95 > 0 3 214308 49364 10780 1551048 0 0 276 0 549 532 2 1 0 96 > 1 5 214304 13884 10992 1593420 32 0 892 20484 726 760 0 19 9 71 > 0 4 214304 14648 11116 1547548 0 0 852 324424 804 1278 2 19 4 > 75 > 0 6 214304 14964 11184 1549504 0 0 1848 35824 638 796 0 6 0 94 > 0 6 214304 28112 11188 1549480 0 0 4 12 620 571 2 1 0 97 >procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu---- > r b swpd free buff cache si so bi bo in cs us sy id wa > 1 7 214304 14604 11296 1549212 0 0 48 134928 640 696 0 13 0 > 86 > 0 7 214304 15052 11372 1547720 0 0 168 95424 822 1137 3 17 0 80 > 0 4 214304 20360 11392 1547520 0 0 0 20552 709 512 0 3 7 91 > 0 4 214304 25844 11396 1548544 0 0 16 1416 438 555 2 1 0 97 > 0 4 214304 38652 11396 1548560 0 0 0 0 571 407 0 2 0 98 > 0 3 214304 52360 11396 1548560 0 0 0 0 601 721 2 1 0 97 > 0 3 214304 50348 11424 1565520 0 0 4 16 481 397 0 2 2 97 > 1 3 214304 14952 11768 1596452 0 0 252 52444 661 952 2 25 19 54 > 0 5 214304 15320 11856 1548480 0 0 4 364900 760 666 0 16 4 > 79 > 0 5 214304 14896 11940 1547704 0 0 0 90496 709 633 2 11 0 87 > 0 5 214304 14400 11936 1547988 0 0 188 79464 652 544 0 10 0 90 > 0 7 214304 13556 11972 1549776 0 0 8 57844 668 553 2 8 0 90 > 0 4 214304 16036 11996 1550756 0 0 4 38756 755 518 0 6 0 94 > 0 4 214304 28108 11996 1550780 0 0 24 0 485 505 2 1 16 82 > 0 4 214304 40644 11996 1550780 0 0 0 0 498 427 1 1 12 86 > 0 3 214304 53108 11996 1550780 0 0 0 0 634 689 2 2 32 65 > 0 3 214304 14060 12008 1599916 0 0 52 20 525 490 0 8 27 66 > 1 2 214304 14952 11652 1554332 0 0 144 337780 805 1056 2 32 1 > 66 > 1 4 214304 14136 11672 1548960 0 0 0 121500 693 537 0 11 0 > 89 > 1 4 214304 20988 11700 1549328 0 0 888 12288 557 525 2 2 11 85 > 0 3 214304 35248 11700 1549436 0 0 120 0 659 461 6 4 28 62 > 0 3 214304 48952 11700 1549436 0 0 0 0 586 508 8 3 2 86 > 0 4 214304 49148 11748 1552932 0 0 3468 1368 888 542 3 2 1 93 > 0 5 214304 52508 11756 1552948 0 0 80 12 422 243 2 0 0 98 > 0 5 214304 60292 11784 1553904 32 0 1064 8 492 258 0 0 0 > 100 > 1 2 214304 61600 12056 1556072 0 0 2476 1092 916 2595 9 5 42 44 > 2 0 214304 60032 12072 1557844 0 0 1644 16 528 1295 7 6 66 22 > 0 0 214304 59660 12080 1558152 0 0 308 1052 448 937 7 2 86 4 > 3 0 214304 59660 12088 1558152 0 0 0 1052 297 627 1 0 98 1 > 0 0 214304 59668 12096 1558152 0 0 0 1052 390 1060 2 1 96 1 > 1 0 214304 59660 12104 1558152 0 0 0 1052 434 858 6 2 92 0 > 0 0 214304 59536 12112 1558152 0 0 0 1052 449 897 6 3 90 1 > 2 0 214304 60048 12120 1558620 0 0 468 1052 390 809 3 1 93 3 > 0 0 214304 57320 12136 1561792 0 0 3188 0 395 785 3 1 88 8 >^C > >==============================2.6.30 + patch from >#366============================== >ff@home-desktop:~$ dd if=/dev/zero of=./bigfile bs=1M count=15000 & >./fsync-tester >[1] 5148 >fsync time: 0.1111 >fsync time: 4.3442 >fsync time: 3.9939 >fsync time: 3.7558 >fsync time: 5.8475 >fsync time: 1.3059 >fsync time: 3.0354 >fsync time: 4.5832 >fsync time: 4.3041 >fsync time: 0.2866 >fsync time: 0.7935 >fsync time: 3.2131 >fsync time: 1.5684 >fsync time: 2.0876 >fsync time: 0.9385 >fsync time: 4.3251 >fsync time: 4.1135 >fsync time: 0.7379 >fsync time: 4.9408 >fsync time: 1.1250 >fsync time: 4.2838 >fsync time: 1.1455 >fsync time: 4.7464 >fsync time: 2.8139 >fsync time: 3.5942 >fsync time: 0.9125 >fsync time: 3.4242 >fsync time: 0.1742 >fsync time: 4.8445 >fsync time: 4.0925 >fsync time: 0.8951 >fsync time: 4.1239 >fsync time: 0.0716 >fsync time: 4.5728 >fsync time: 0.3215 >fsync time: 4.6018 >fsync time: 3.5965 >15000+0 records in >15000+0 records out >15728640000 bytes (16 GB) copied, 234.895 s, 67.0 MB/s >fsync time: 0.0515 >fsync time: 0.0345 >fsync time: 0.0722 >^C >[1]+ Done dd if=/dev/zero of=./bigfile bs=1M count=15000 > >ff@home-desktop:~$ vmstat 1 >procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu---- > r b swpd free buff cache si so bi bo in cs us sy id wa > 0 0 0 1235868 42744 329892 0 0 1120 36 267 866 7 4 68 22 > 0 0 0 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