从/proc/loadavg获得数据
runq-sz 采样时，运行队列中任务的个数，不包括vmstat 进程。 procs_running-1
plist-sz 采样时，系统中活跃的任务的个数 nr_threads
ldavg-1 采样的前一秒钟系统的负载(%) lavg_1
ldavg-5 采样的5秒钟系统的负载(%) lavg_5
ldavg-15 采样的前15秒钟系统的负载(%) lavg_15
[root@surgegate1 log]# sar -q
Linux 2.6.9-42.ELsmp (surgegate1) 01/30/2008
12:00:01 AM runq-sz plist-sz ldavg-1 ldavg-5 ldavg-15
12:10:02 AM 2 300 1.44 1.57 1.13
12:20:01 AM 2 296 1.36 1.57 1.35
12:30:01 AM 2 295 1.73 1.70 1.52
12:40:01 AM 4 296 1.13 1.45 1.49
12:50:01 AM 5 293 1.10 1.25 1.36
01:00:01 AM 98 354 95.52 71.37 36.21
01:10:01 AM 108 357 105.33 97.30 66.50
01:20:01 AM 112 332 108.99 107.09 86.52
01:30:01 AM 115 332 111.91 110.48 97.99
01:40:01 AM 114 334 112.93 112.37 104.89
01:50:01 AM 116 332 112.99 112.89 108.70
02:00:01 AM 117 342 113.03 112.99 110.74
02:10:01 AM 139 421 132.37 125.51 117.69
02:20:01 AM 156 502 152.89 145.12 131.21
02:30:01 AM 179 578 172.96 165.14 147.79
02:40:01 AM 197 662 193.02 185.22 166.16
02:50:01 AM 218 738 213.23 205.44 185.35
03:00:01 AM 235 814 233.03 225.44 204.88
03:10:01 AM 238 812 234.98 233.45 219.06
03:20:01 AM 238 812 235.04 234.80 226.64
03:30:01 AM 236 814 235.03 234.97 230.58
03:40:01 AM 238 812 235.06 235.01 232.67
03:50:01 AM 236 814 235.00 235.01 233.78
04:00:01 AM 241 818 235.07 235.02 234.36
04:10:01 AM 260 912 255.56 248.83 241.21
04:20:01 AM 280 993 275.55 268.18 254.53
04:30:01 AM 300 1067 295.19 287.87 270.96
04:30:01 AM runq-sz plist-sz ldavg-1 ldavg-5 ldavg-15
04:40:01 AM 318 1142 314.34 306.81 288.48
04:50:01 AM 337 1220 334.01 326.41 306.93
05:00:01 AM 356 1294 354.71 346.70 326.32
05:10:01 AM 358 1292 355.02 353.91 340.04
05:20:01 AM 355 1294 355.07 354.86 347.15
05:30:01 AM 356 1294 355.08 355.02 350.87
05:40:02 AM 355 1292 355.15 355.03 352.84
05:50:01 AM 357 1294 355.04 355.01 353.84
06:00:01 AM 358 1297 355.07 355.02 354.39
06:10:01 AM 377 1382 374.89 368.13 360.94
06:20:01 AM 397 1462 394.48 386.83 373.59
06:30:01 AM 418 1540 414.30 406.73 389.86
06:40:01 AM 438 1622 434.19 426.59 407.92
06:50:01 AM 458 1702 454.38 446.62 426.77
07:00:01 AM 475 1774 474.48 466.58 446.18
07:10:01 AM 478 1772 474.83 473.76 459.83
07:20:01 AM 478 1772 475.02 474.84 467.04
07:30:01 AM 475 1774 475.04 474.99 470.81
07:40:01 AM 476 1774 475.33 475.09 472.83
07:50:01 AM 476 1774 475.03 475.03 473.86
08:00:01 AM 478 1777 475.03 475.03 474.40
08:10:01 AM 498 1862 494.28 487.72 480.66
08:20:01 AM 524 1942 519.29 509.42 494.64
08:30:01 AM 548 2022 543.37 533.43 513.65
08:40:01 AM 575 2103 570.48 559.11 535.80
08:50:01 AM 602 2192 599.56 588.52 561.64
09:00:01 AM 624 2219 623.17 614.48 587.53
Average: runq-sz plist-sz ldavg-1 ldavg-5 ldavg-15
Average: 299 1098 295.96 291.64 280.26
08:58:11 AM LINUX RESTART
09:05:55 AM LINUX RESTART
09:10:01 AM runq-sz plist-sz ldavg-1 ldavg-5 ldavg-15
09:20:01 AM 0 160 4.38 4.23 2.02
09:30:01 AM 0 208 1.79 3.23 2.65
09:40:02 AM 2 208 3.93 2.86 2.61