Managers, we are trying to understand the vmstat output we generate on
our db host during the day. We had an unusual occurrence of high load
average during the time we got a denial of service on our system. We
cannot determine what created the high load scenario but have a lot of
information to look at. I am including a vmstat output during the time.
There are some odd numbers for fault/free/cow/zero during the duration
of the outage. Can someone help explain what might be happening with the
virtual memory of the system?
TIA
18:34:31.624: Virtual Memory Statistics: (pagesize = 8192)
18:34:31.624: procs memory pages
intr cpu
18:34:31.624: r w u act free wire fault cow zero react pin pout
in sy cs us sy id
18:34:31.624: 6 571 43 1M 116 918K 43K 3457 9179 2644 4678 617
2K 16K 9K 15 13 73
18:34:46.789: 7 570 44 1M 128 919K 27K 541 1662 2390 2320 171
2K 17K 10K 17 13 70
18:35:01.878: 5 571 44 1M 78 919K 61K 8084 12K 5479 7961 121
2K 21K 9K 18 17 65
18:35:16.975: 6 567 47 1M 137 907K 48K 7364 10K 1650 6737 60
2K 15K 7K 13 15 72
18:35:32.084: 8 568 45 1M 81 907K 51K 3216 8476 55 4556 0
4K 24K 12K 25 16 59
18:35:47.163: 5 573 43 1M 268 907K 31K 754 2365 119 2423 0
3K 15K 9K 16 8 75
18:36:02.245: 7 570 43 1M 243 907K 48K 3373 9102 97 4408 0
3K 21K 11K 23 12 65
18:36:17.338: 7 570 43 1M 265 907K 39K 882 3532 122 2498 0
3K 22K 11K 24 11 65
18:36:32.431: 7 573 40 1M 123 907K 44K 3182 8353 74 3578 0
3K 20K 9K 21 11 67
18:36:47.521: 9 570 41 1M 233 907K 26K 823 2489 16 1875 0
2K 13K 8K 14 8 78
18:37:02.638: 5 578 42 1M 106 908K 43K 3385 8829 28 3997 0
2K 15K 8K 17 10 73
18:37:17.728: 6 574 43 1M 220 908K 28K 946 4057 57 2013 0
8K 21K 12K 38 16 46
18:37:32.815: 7 572 41 1M 120 908K 48K 3297 8736 22 4115 0
7K 25K 14K 33 18 49
18:37:47.896: 6 572 42 1M 136 908K 23K 789 2420 19 1749 0
2K 14K 7K 11 7 81
18:38:02.978: 6 574 40 1M 125 908K 39K 3192 8419 13 3578 0
2K 15K 8K 13 9 78
18:38:18.086: 6 571 44 1M 91 908K 32K 1145 4410 13 2541 0
2K 16K 9K 13 9 79
18:38:33.164: 7 572 41 1M 105 909K 40K 3243 8476 20 3555 0
2K 15K 8K 13 9 78
18:38:48.260: 7 571 43 1M 68 911K 27K 765 2364 2025 1653 34
3K 16K 9K 14 14 72
18:39:03.344: 6 572 42 1M 101 912K 29K 1660 4882 9441 2333 405
3K 15K 11K 14 15 72
18:39:18.434: 5 574 41 1M 116 914K 35K 2474 7499 7305 3153 213
3K 13K 10K 10 9 81
18:39:33.574: 9 569 42 1M 167 915K 26K 798 1982 3707 1761 279
4K 16K 13K 15 10 75
18:39:48.657: Virtual Memory Statistics: (pagesize = 8192)
18:39:48.657: procs memory pages
intr cpu
18:39:48.658: r w u act free wire fault cow zero react pin pout
in sy cs us sy id
18:39:48.658: 5 573 43 1M 122 916K 45K 3774 9607 1909 4054 158
4K 16K 11K 14 13 74
18:40:03.758: 7 572 41 1M 780 918K 65K 10K 9746 2138 8561 273
4K 22K 14K 18 19 63
18:40:18.841: 5 569 46 1M 126 919K 56K 5042 13K 1127 5287 90
2K 18K 7K 16 11 74
18:40:33.921: 6 574 41 1M 127 919K 28K 551 1718 45 1404 0
3K 18K 11K 17 9 74
18:40:49.003: 5 573 43 1M 125 919K 38K 3434 9125 216 3737 0
2K 14K 6K 11 8 81
18:41:04.087: 5 573 42 1M 110 919K 30K 624 1914 310 1777 0
3K 18K 11K 17 9 74
18:41:27.521: 15 565 44 1M 2020 917K 5193 56 643 13 186 0
1K 12K 3K 7 82 11
18:41:50.731: 16 561 41 1M 5873 910K 0 0 0 0 0 0
846 13K 2K 9 89 2
18:42:07.666: 10 567 42 1M 9764 903K 0 0 0 0 0 0
720 10K 2K 9 71 19
18:42:22.888: 7 572 40 1M 15K 896K 0 0 0 0 0 0
570 6K 2K 7 38 55
18:42:38.947: 7 572 39 1M 18K 892K 0 0 0 0 0 0
397 4K 1K 3 67 30
18:42:55.938: 8 569 41 1M 23K 887K 0 0 0 0 0 0
238 1K 963 2 32 66
18:43:13.171: 8 576 38 1M 27K 883K 0 0 0 0 0 0
174 1K 770 1 47 52
18:43:29.197: 8 571 39 1M 30K 879K 0 0 0 0 0 0
140 1K 513 1 37 63
18:43:45.540: 8 574 37 1M 33K 877K 0 0 0 0 0 0
163 2K 602 1 48 51
18:44:03.561: 9 568 40 1M 35K 874K 0 0 0 0 0 0
221 1K 780 1 46 52
18:44:21.963: 10 567 41 1M 37K 871K 0 0 0 0 0 0
556 8K 2K 7 40 54
18:44:39.381: 10 570 38 1M 40K 866K 0 0 0 0 0 0
583 6K 2K 8 59 33
18:44:55.634: 14 569 40 1M 40K 863K 0 0 0 0 0 0
503 7K 1K 10 59 31
18:45:11.736: 10 586 38 1M 41K 860K 0 0 0 0 0 0
307 5K 1K 6 79 15
18:45:27.693: 10 580 38 1M 45K 857K 0 0 0 0 0 0
313 3K 1K 4 45 51
18:45:45.275: Virtual Memory Statistics: (pagesize = 8192)
18:45:45.275: procs memory pages
intr cpu
18:45:45.275: r w u act free wire fault cow zero react pin pout
in sy cs us sy id
18:45:45.275: 8 605 38 1M 44K 855K 0 0 0 0 0 0
222 3K 806 3 56 41
18:46:01.547: 10 600 38 1M 47K 851K 0 0 0 0 0 0
324 3K 1K 3 57 41
18:46:19.375: 8 593 38 1M 52K 847K 0 0 0 0 0 0
259 3K 914 2 59 38
18:46:35.260: 7 594 38 1M 56K 843K 0 0 0 0 0 0
310 2K 1K 3 43 54
18:46:50.357: 5 613 44 1M 30K 839K 709K 37K 92K 962 59K 63
1K 20K 5K 12 63 25
18:47:05.449: 6 599 43 1M 21K 835K 79K 1701 5015 0 3023 0
1K 14K 6K 9 12 78
18:47:20.544: 9 569 42 1M 25K 828K 106K 3553 9272 4 4420 0
5K 36K 12K 40 18 42
18:47:35.649: 12 565 43 1M 17K 829K 84K 1174 3381 0 2557 0
5K 39K 13K 47 15 38
18:47:50.740: 10 572 39 1M 7719 829K 88K 5752 12K 2 5719 0
5K 39K 13K 38 17 45
18:48:05.849: 13 562 45 1M 381 829K 71K 3285 7911 2 3787 0
5K 38K 12K 37 14 49
18:48:20.990: 6 571 42 1M 394 830K 66K 1140 3034 38 2044 0
6K 39K 14K 42 16 43
18:48:36.071: 5 573 42 1M 116 830K 84K 3068 8324 40 3622 0
5K 38K 14K 40 15 45
18:48:51.172: 11 564 45 1M 344 831K 64K 684 2036 63 1775 0
5K 37K 13K 39 13 48
18:49:06.269: 8 571 41 1M 51 831K 73K 3427 10K 122 3627 0
5K 37K 13K 32 16 53
18:49:21.358: 6 572 42 1M 293 831K 44K 585 1794 24 1398 0
4K 28K 13K 24 12 65
18:49:36.440: 6 574 40 1M 126 831K 53K 3564 9431 52 3833 0
3K 22K 10K 17 11 72
18:49:51.527: 6 573 41 1M 60 831K 27K 829 2408 105 1791 0
2K 17K 9K 14 11 75
18:50:06.608: 8 570 42 1M 303 831K 76K 14K 20K 30 11K 0
1K 18K 6K 12 16 72
18:50:21.687: 5 575 40 1M 151 831K 30K 896 2433 54 1924 0
2K 13K 7K 12 7 81
Aaron Siebert
Nagrastar Customer Support Engineer
303-706-5492 fax 303-706-5719
Aaron.Siebert_at_NagraStar.com
Received on Fri Jan 30 2004 - 00:43:24 NZDT