From: RaghuNath L(Raghu) (LRaghuNath@Lucent.Com)
Date: Wed Mar 19 2003 - 05:09:28 EST
Dear Managers,
We facing performance problem with a 420 connected to T3+ (1 gb
cache)this server used as Clearcase vob server.
Here are the statistics,
Top out put shows not much of user or kernel process running but still
cpu availability is only 8 % but there is no cpu intensive applications
running on it.
It's a fully loaded 420R with 4 cpu 4 Gb Ram.
last pid: 14377; load averages: 0.84, 0.72, 0.58
14:56:24
248 processes: 246 sleeping, 1 stopped, 1 on cpu
CPU states: 8.0% idle, 5.2% user, 5.2% kernel, 81.6% iowait, 0.0% swap
Memory: 4096M real, 62M free, 469M swap in use, 10G swap free
Mpstat output.
Out put shows processors are getting loaded ( data below idle column)
but there is no load by either user or kernel it's just around 11 %
where all the cpu cycles are utilised ?
I/o wait is alarmingly high.
0 0 3 1201 194 193 225 1 9 5 0 1058 3 2
65 30
1 0 6 628 400 200 165 0 12 4 0 668 2 2
88 8
2 0 4 477 386 385 229 1 13 8 0 765 2 3
81 14
3 0 6 641 107 105 232 2 9 3 0 904 2 2
74 22
CPU minf mjf xcal intr ithr csw icsw migr smtx srw syscl usr sys wt idl
0 2 10 1682 200 198 180 3 17 10 0 914 3 3
94 0
1 2 14 569 404 200 298 3 14 3 0 591 1 1
89 9
2 1 4 328 439 439 234 1 12 17 0 708 1 1
54 44
3 1 10 745 112 109 246 1 24 15 0 611 2 2
90 6
CPU minf mjf xcal intr ithr csw icsw migr smtx srw syscl usr sys wt idl
0 5 4 1377 191 189 238 3 12 8 0 522 2 1
45 52
1 0 8 584 402 200 309 2 11 8 0 545 2 3
93 3
2 0 4 211 558 556 312 3 10 4 0 1055 3 2
63 32
3 0 12 1085 105 102 329 2 15 10 0 940 3 4
87 6
CPU minf mjf xcal intr ithr csw icsw migr smtx srw syscl usr sys wt idl
0 2 8 2082 187 186 193 2 20 10 0 948 1 2
73 24
1 0 14 1240 402 200 314 2 9 5 0 723 1 3
57 39
2 0 11 781 335 333 186 2 12 12 0 735 3 2
79 16
3 32 9 1868 103 101 178 2 17 7 0 498 0 2
97 1
CPU minf mjf xcal intr ithr csw icsw migr smtx srw syscl usr sys wt idl
0 1 17 1738 224 222 286 3 18 9 0 1767 3 3
52 42
1 0 15 1083 403 200 233 4 18 15 0 1171 3 3
79 15
2 0 20 1326 534 529 371 4 14 18 0 2291 8 5
77 11
3 0 9 1262 106 101 344 5 18 10 0 1861 5 4
91 0
CPU minf mjf xcal intr ithr csw icsw migr smtx srw syscl usr sys wt idl
0 1 30 3172 246 242 358 6 17 11 0 2010 3 6
66 25
1 1 17 1230 407 200 386 9 27 14 0 2271 8 5
72 15
2 2 26 823 570 562 280 9 21 13 0 1684 5 6
61 28
3 1 23 1570 109 102 363 7 21 10 0 1872 2 6
85 7
CPU minf mjf xcal intr ithr csw icsw migr smtx srw syscl usr sys wt idl
0 0 14 1764 226 223 348 5 27 14 0 838 2 4
80 13
1 1 19 940 403 200 321 3 37 20 0 1577 2 4
87 8
2 3 13 1498 570 557 350 13 36 19 0 1290 4 5
64 26
3 1 14 623 106 101 389 7 22 18 0 1581 3 7
74 16
But on sunfire 6800 cpu utilization is proportional to kernal and users
processes .
load averages: 2.43, 2.30, 1.82
15:03:12
2871 processes:2857 sleeping, 2 zombie, 8 stopped, 4 on cpu
CPU states: 67.9% idle, 20.3% user, 6.8% kernel, 5.0% iowait, 0.0% swap
Memory: 16G real, 8315M free, 6718M swap in use, 14G swap free
Kidly help us i will summarize.
regards
Raghu
Ra
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