Francois Romieu wrote:
Richard Gregory <[EMAIL PROTECTED]> :
[...]
# locked in 1 min. Output in bug5.txt
$ for i in `seq 0 26` ; do cat /dev/md1 > /dev/tcp/linuxbox/9 &
$ cat /dev/md0 > /dev/tcp/localhost/9
Can you replace /dev/tcp/foo with a simple /dev/null and send the output
of 'vmstat 1' during 2 minutes of test ?
A few seconds of 'vmstat 1' during a simple dd from /dev/md0
(resp. /dev/md1) would be welcome too.
Attached.
Richard
# for i in `seq 0 26` ; do cat /dev/md1 > /dev/null ; done &
# cat /dev/md0 > /dev/null
$ 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 7280 631436 848704 25264 0 0 0 37 31 39 1 14 83 2
0 0 7280 631436 848712 25264 0 0 0 56 232 26 0 0 100 0
0 0 7280 631436 848712 25264 0 0 0 0 212 12 0 0 100 0
0 0 7280 631436 848712 25264 0 0 0 0 221 24 0 0 100 0
0 0 7280 631436 848712 25264 0 0 0 0 212 10 0 0 100 0
0 0 7280 631436 848712 25264 0 0 0 0 208 12 0 0 100 0
0 0 7280 631436 848712 25264 0 0 0 0 209 6 0 0 100 0
0 0 7280 631436 848712 25264 0 0 0 0 212 14 0 0 100 0
0 0 7280 631436 848712 25264 0 0 0 0 209 8 0 0 100 0
0 1 7280 630572 849708 25328 0 0 17948 0 361 479 0 5 52 43
0 1 7280 630864 849404 25328 0 0 50384 0 621 1249 0 14 0 86
0 1 7280 630204 850044 25328 0 0 47360 0 583 1161 0 17 0 83
1 2 7280 631044 849040 25328 0 0 102292 0 1314 1319 0 65 0 35
0 2 7280 630984 849296 25328 0 0 122112 0 1627 1303 0 77 0 23
2 1 7280 630932 849296 25328 0 0 118400 60 1590 1291 1 78 0 21
1 1 7280 631044 849232 25328 0 0 123584 0 1582 1315 0 78 0 22
0 2 7280 630984 849252 25328 0 0 123264 0 1619 1315 0 74 0 26
1 2 7280 631104 848932 25328 0 0 116672 64 1681 1282 2 76 0 22
2 1 7280 631108 848964 25328 0 0 120704 0 1559 1299 1 74 0 25
2 1 7280 630572 849684 25328 0 0 124224 0 1670 1354 1 76 0 23
1 2 7280 631104 848988 25328 0 0 120128 32 1655 1327 0 77 0 23
procs -----------memory---------- ---swap-- -----io---- --system-- ----cpu----
r b swpd free buff cache si so bi bo in cs us sy id wa
0 2 7280 630984 849252 25328 0 0 126336 0 1821 1416 1 83 0 16
0 2 7280 631112 849124 25328 0 0 126592 0 1818 1413 0 88 0 12
1 2 7280 631164 848888 25328 0 0 127104 0 1824 1401 1 87 0 12
1 2 7280 631292 848760 25328 0 0 122880 0 1678 1311 1 77 0 22
2 1 7280 630392 849856 25328 0 0 124864 32 1842 1392 1 85 0 14
2 1 7280 631232 848840 25328 0 0 123776 0 1744 1385 0 83 0 17
2 1 7280 630984 849288 25328 0 0 122816 0 1702 1319 0 78 0 22
2 2 7280 630932 849352 25328 0 0 127040 0 1786 1402 1 83 0 16
1 1 7280 631104 848976 25328 0 0 123520 12 1637 1351 0 79 0 21
0 2 7280 631112 849188 25328 0 0 118080 20 1666 1263 3 70 2 25
2 1 7280 630504 849772 25328 0 0 128960 0 1925 1462 1 89 0 10
2 1 7280 630144 850156 25328 0 0 122880 0 1641 1352 1 76 0 23
2 1 7280 630744 849520 25328 0 0 125952 0 1777 1383 1 81 0 18
1 3 7280 630444 849848 25328 0 0 122820 20 1671 1369 3 76 0 21
2 1 7280 630924 849340 25328 0 0 120832 12 1689 1322 2 78 0 20
2 2 7280 631164 848960 25328 0 0 123904 0 1705 1378 2 82 0 16
1 1 7280 631044 849232 25328 0 0 126336 0 1752 1385 2 78 0 20
2 1 7280 630324 849956 25328 0 0 124228 40 1883 1442 1 88 0 11
2 1 7280 630624 849700 25328 0 0 122240 0 1628 1297 0 79 0 21
1 2 7280 631104 848996 25328 0 0 123072 0 1620 1346 2 77 0 21
1 1 7280 631052 849252 25328 0 0 123520 0 1697 1358 0 77 0 23
procs -----------memory---------- ---swap-- -----io---- --system-- ----cpu----
r b swpd free buff cache si so bi bo in cs us sy id wa
0 2 7280 630924 849380 25328 0 0 127488 0 1901 1420 1 87 0 12
1 2 7280 630144 850156 25328 0 0 120064 32 1664 1321 0 83 0 17
1 2 7280 631224 848880 25328 0 0 124544 0 1666 1343 0 81 0 19
2 2 7280 631104 849228 25328 0 0 122816 0 1686 1362 1 83 0 16
2 1 7280 630812 849484 25328 0 0 120448 0 1552 1307 0 70 0 30
1 1 7280 630512 849804 25328 0 0 124864 0 1753 1389 1 80 0 19
2 1 7280 630444 849876 25328 0 0 120384 32 1711 1317 0 77 0 23
1 2 7280 630804 849492 25328 0 0 120192 0 1596 1364 3 76 0 21
1 2 7280 631164 848988 25328 0 0 121472 0 1549 1300 0 83 0 17
1 2 7280 631224 848924 25328 0 0 125504 0 1777 1383 0 77 0 23
2 2 7280 630624 849716 25328 0 0 121728 20 1776 1337 0 85 0 15
0 2 7280 630864 849468 25328 0 0 115712 32 1548 1246 1 66 2 31
2 1 7280 631232 848892 25328 0 0 123456 0 1720 1389 3 79 0 18
0 2 7280 631104 849220 25328 0 0 128704 0 1870 1412 0 90 0 10
2 1 7280 630384 849924 25328 0 0 126016 0 1801 1407 1 85 0 14
0 2 7280 630984 849348 25328 0 0 123200 0 1625 1340 1 77 0 22
2 1 7280 630504 849804 25328 0 0 118208 32 1597 1307 3 70 2 25
2 1 7280 630392 849952 25328 0 0 128128 0 1867 1412 0 86 0 14
0 2 7280 630444 849896 25328 0 0 120768 0 1570 1313 0 71 0 29
0 2 7280 631044 849256 25328 0 0 124672 0 1710 1365 1 79 0 20
0 2 7280 630924 849384 25328 0 0 125952 0 1789 1406 0 89 0 11
procs -----------memory---------- ---swap-- -----io---- --system-- ----cpu----
r b swpd free buff cache si so bi bo in cs us sy id wa
1 1 7280 630504 849840 25328 0 0 121408 32 1773 1385 2 81 0 17
1 1 7280 630812 849520 25328 0 0 123200 0 1705 1376 1 77 0 22
0 2 7280 631224 849144 25328 0 0 126976 0 1700 1379 0 77 0 23
1 2 7280 630924 849420 25328 0 0 123776 0 1658 1358 1 78 0 21
1 2 7280 630384 849932 25328 0 0 122368 0 1592 1308 0 75 0 25
2 2 7280 630744 849620 25328 0 0 121920 32 1741 1338 2 79 0 19
0 2 7280 631104 849236 25328 0 0 125440 0 1737 1373 1 85 0 14
2 1 7280 630444 849884 25328 0 0 123648 0 1652 1343 0 80 0 20
1 1 7280 630804 849564 25328 0 0 125504 0 1716 1387 3 80 0 17
3 2 7280 631164 849180 25328 0 0 126208 0 1855 1407 2 85 0 13
1 1 7280 630932 849400 25328 0 0 119104 32 1726 1354 0 82 2 16
2 1 7280 630384 849976 25328 0 0 121152 0 1506 1304 0 66 0 34
1 2 7280 631224 848960 25328 0 0 124800 0 1733 1369 0 81 0 19
2 1 7280 630564 849792 25328 0 0 125888 0 1821 1439 0 85 0 15
1 1 7280 630452 849920 25328 0 0 127616 0 1840 1406 1 83 0 16
1 2 7280 630684 849672 25328 0 0 114048 32 1538 1233 1 71 0 28
0 2 7280 630564 849800 25328 0 0 124160 0 1672 1360 0 83 0 17
0 2 7280 631104 849252 25328 0 0 122944 0 1652 1332 0 76 0 24
2 1 7280 630572 849764 25328 0 0 121472 0 1596 1307 1 76 0 23
2 1 7280 630564 849828 25328 0 0 122176 0 1604 1329 1 77 0 22
2 1 7280 631232 848940 25328 0 0 118272 32 1643 1285 0 75 2 23
procs -----------memory---------- ---swap-- -----io---- --system-- ----cpu----
r b swpd free buff cache si so bi bo in cs us sy id wa
0 2 7280 630444 849900 25328 0 0 123072 0 1656 1314 0 80 0 20
2 1 7280 630144 850228 25328 0 0 126144 0 1783 1356 1 81 0 18
2 1 7280 630812 849588 25328 0 0 125568 0 1788 1376 1 85 0 14
2 1 7280 631112 849288 25328 0 0 123968 0 1705 1335 0 77 0 23
2 1 7280 630624 849744 25328 0 0 120512 32 1678 1314 3 76 0 21
1 1 7280 630624 849744 25328 0 0 125312 0 1761 1388 2 79 0 19
2 1 7280 630744 849624 25328 0 0 124160 0 1718 1329 0 81 0 19
2 1 7280 630392 850000 25328 0 0 121592 0 1696 1355 2 74 0 24
1 2 7280 630932 849424 25328 0 0 124224 0 1734 1363 3 81 0 16
2 1 7280 630384 850008 25328 0 0 118592 32 1657 1290 0 77 2 21
1 1 7280 631284 849068 25328 0 0 124864 0 1771 1352 0 84 0 16
1 2 7280 630804 849588 25328 0 0 124544 0 1762 1402 0 82 0 18
2 1 7280 630572 849844 25328 0 0 124032 0 1695 1335 0 82 0 18
0 2 7280 630992 849396 25328 0 0 123328 0 1651 1319 0 83 0 17
2 1 7280 630324 850044 25328 0 0 115968 32 1537 1250 1 71 1 27
1 1 7280 631044 849148 25328 0 0 126592 0 1795 1399 0 84 0 16
1 1 7280 630324 850052 25328 0 0 123776 0 1672 1353 0 79 0 21
2 1 7280 630864 849556 25328 0 0 122496 0 1705 1359 0 80 0 20
2 2 7280 630444 849944 25328 0 0 121088 0 1603 1316 1 77 0 22
2 1 7280 631052 849376 25328 0 0 114880 32 1494 1234 0 72 2 26
2 1 7280 630264 850144 25328 0 0 123392 0 1653 1326 0 76 0 24
procs -----------memory---------- ---swap-- -----io---- --system-- ----cpu----
r b swpd free buff cache si so bi bo in cs us sy id wa
2 1 7280 630324 850088 25328 0 0 121408 0 1548 1326 1 71 0 28
2 2 7280 631044 849384 25328 0 0 124352 0 1775 1399 0 83 0 17
1 2 7280 630864 849512 25328 0 0 123136 0 1682 1352 0 83 0 17
0 2 7280 631104 849268 25328 0 0 115456 32 1585 1319 2 70 2 26
2 1 7280 630444 849988 25328 0 0 121024 0 1593 1321 0 77 0 23
2 1 7280 630564 849868 25328 0 0 123904 0 1729 1351 0 83 0 17
2 1 7280 631224 848972 25328 0 0 124672 0 1728 1359 1 77 0 22
2 1 7280 630924 849484 25328 0 0 123008 0 1740 1323 2 80 0 18
2 1 7280 630444 850004 25328 0 0 121600 32 1821 1359 1 81 2 16
0 2 7280 630984 849428 25328 0 0 126656 0 1792 1395 2 82 0 16
2 1 7280 630384 850012 25328 0 0 123200 0 1647 1348 0 78 0 22
0 2 7280 630324 850096 25328 0 0 122048 0 1634 1306 1 76 0 23
0 2 7280 630984 849456 25328 0 0 125184 0 1779 1403 0 80 0 20
2 2 7280 630812 849592 25328 0 0 119552 32 1682 1288 0 76 0 24
2 1 7280 630264 850168 25328 0 0 121920 0 1586 1317 1 75 0 24
1 2 7280 631112 849344 25328 0 0 127424 0 1834 1383 1 84 0 15
2 1 7280 631044 849216 25328 0 0 125952 0 1736 1368 0 77 0 23
0 2 7280 630684 849728 25328 0 0 121600 0 1591 1306 1 73 0 26
2 1 7280 630512 849948 25328 0 0 119360 32 1668 1327 1 77 0 22
0 2 7280 630744 849692 25328 0 0 126336 0 1821 1403 1 80 0 19
2 1 7280 630504 849956 25328 0 0 124032 0 1733 1371 1 82 0 17
procs -----------memory---------- ---swap-- -----io---- --system-- ----cpu----
r b swpd free buff cache si so bi bo in cs us sy id wa
2 1 7280 630744 849700 25328 0 0 121856 0 1652 1298 2 77 0 21
0 2 7280 630924 849508 25328 0 0 129856 0 1947 1488 1 91 0 8
1 2 7280 630864 849580 25328 0 0 119616 32 1675 1328 0 80 0 20
2 1 7280 630324 850092 25328 0 0 123520 0 1654 1343 0 81 0 19
1 2 7280 631224 849032 25328 0 0 121408 0 1561 1292 1 75 0 24
0 2 7280 631164 849288 25328 0 0 127104 0 1862 1404 0 89 0 11
0 0 7280 631052 849420 25328 0 0 120320 12 1595 1303 0 80 2 18
2 1 7280 630444 850000 25328 0 0 121920 20 1709 1357 2 80 0 18
2 1 7280 631164 849108 25328 0 0 124928 0 1800 1418 1 82 0 17
2 1 7280 630564 849880 25328 0 0 125568 0 1768 1395 2 80 0 18
1 2 7280 631104 849176 25328 0 0 123840 0 1691 1354 1 74 0 25
0 1 7280 630864 849588 25328 0 0 97408 32 1339 1212 1 58 2 39
0 1 7280 630504 849972 25328 0 0 45824 0 573 1129 1 14 0 85
0 1 7280 630384 850100 25328 0 0 46976 0 575 1145 0 14 0 86
0 1 7280 630212 850228 25328 0 0 46976 0 589 1163 0 15 0 85
0 0 7280 630520 849972 25328 0 0 40064 0 539 1000 0 10 15 75
0 0 7280 630520 849980 25328 0 0 0 28 224 24 0 0 100 0
0 0 7280 630520 849980 25328 0 0 0 0 208 8 0 0 100 0
0 0 7280 630536 849980 25328 0 0 0 0 209 8 0 0 100 0
0 0 7280 630536 849980 25328 0 0 0 0 212 10 0 0 100 0
# dd if=/dev/md0 > /dev/null
# 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 7280 630828 849780 25340 0 0 28 37 32 39 1 14 83 2
0 0 7280 630828 849780 25340 0 0 0 0 216 8 0 0 100 0
0 0 7280 630828 849780 25340 0 0 0 0 209 8 0 0 100 0
0 0 7280 630828 849780 25340 0 0 0 0 209 8 0 0 100 0
0 1 7280 630648 849964 25372 0 0 15308 68 450 197 5 59 16 20
1 0 7280 630528 850092 25372 0 0 65408 0 1099 485 5 60 0 35
0 1 7280 631120 849324 25372 0 0 65408 0 1078 474 4 52 0 44
1 0 7280 630460 850156 25372 0 0 65856 0 1104 501 5 50 0 45
0 1 7280 630520 850092 25372 0 0 64960 0 1080 483 4 49 0 48
1 0 7280 630880 849780 25372 0 0 63168 28 1058 474 2 59 0 39
1 0 7280 630880 849780 25372 0 0 66304 0 1117 526 6 52 0 42
0 1 7280 630948 849716 25372 0 0 64960 0 1060 466 4 57 0 39
0 0 7280 630460 850164 25372 0 0 47936 0 861 369 2 41 27 31
0 0 7280 630468 850164 25372 0 0 0 0 208 8 0 0 100 0
0 0 7280 630468 850172 25372 0 0 0 28 227 26 0 1 99 0
# dd if=/dev/md1 > /dev/null
$ 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 7280 630468 850172 25372 0 0 29 37 32 39 1 14 83 2
0 0 7280 630468 850172 25372 0 0 0 0 217 8 0 0 100 0
0 0 7280 630468 850172 25372 0 0 0 0 237 56 0 0 100 0
0 0 7280 630468 850172 25372 0 0 0 0 217 19 0 0 100 0
0 0 7280 630468 850172 25372 0 0 0 40 236 25 0 0 100 0
1 1 7280 630468 850200 25372 0 0 36492 52 512 920 1 18 18 63
0 1 7280 630700 849948 25372 0 0 46464 4 573 1139 2 21 0 77
1 0 7280 631180 849436 25372 0 0 45056 8 567 1102 4 25 0 71
0 1 7280 630580 850076 25372 0 0 47360 0 579 1156 0 30 0 70
0 1 7280 631180 849308 25372 0 0 47360 0 578 1157 2 27 0 71
0 1 7280 630820 849820 25372 0 0 47360 0 578 1152 3 24 0 73
0 1 7280 630700 849948 25372 0 0 43008 28 560 1063 4 19 2 75
0 1 7280 630156 850460 25372 0 0 47360 0 578 1152 3 22 0 75
0 1 7280 630820 849820 25372 0 0 47360 0 580 1158 1 28 0 71
0 0 7280 630828 849820 25372 0 0 10496 0 301 276 0 9 78 13
0 0 7280 630836 849820 25372 0 0 0 0 208 10 0 0 100 0
0 0 7280 630836 849820 25372 0 0 0 28 225 24 0 1 99 0
0 0 7280 630836 849820 25372 0 0 0 0 208 8 0 0 100 0
