{"id":30,"date":"2022-04-19T22:17:26","date_gmt":"2022-04-19T14:17:26","guid":{"rendered":"https:\/\/blog.maoyulong.club\/?p=30"},"modified":"2022-04-19T22:17:29","modified_gmt":"2022-04-19T14:17:29","slug":"top%e7%9f%a5%e8%af%86%e6%b1%87%e6%80%bb","status":"publish","type":"post","link":"https:\/\/blog.maoyulong.club\/?p=30","title":{"rendered":"top\u77e5\u8bc6\u6c47\u603b"},"content":{"rendered":"

\u4e4b\u524d\u5728\u770btop\u7684\u516b\u80a1\u7684\u65f6\u5019\uff0c\u53d1\u73b0\u5199top\u7684\u5927\u90e8\u5206blog\u5e76\u6ca1\u6709\u5b8c\u5168\u628a\u6574\u4e2a\u6982\u5ff5\u8bb2\u5168\uff0c\u6709\u5fc5\u8981\u518d\u6c47\u603b\u4e00\u4e0b<\/p>\n

\u53c2\u8003\u6587\u7ae0 \uff1a<\/p>\n

man top<\/p>\n

Linux top\u547d\u4ee4\u8be6\u89e3 - \u5c0fa\u7396\u62fe\u67d2 - \u535a\u5ba2\u56ed (cnblogs.com)<\/a><\/p>\n

Linux\u7684\u8fdb\u7a0b\u4f18\u5148\u7ea7NI\u548cPR - lclc - \u535a\u5ba2\u56ed (cnblogs.com)<\/a><\/p>\n

(58\u6761\u6d88\u606f) \u5982\u4f55\u7406\u89e3uptime--\"\u5e73\u5747\u8d1f\u8f7dLoad Average\"_KingOfMyHeart\u7684\u535a\u5ba2-CSDN\u535a\u5ba2<\/a><\/p>\n

top \u754c\u9762<\/h2>\n

\u7b2c\u4e00\u884c\uff0c\u4efb\u52a1\u961f\u5217\u4fe1\u606f\uff0c\u540c uptime \u547d\u4ee4\u7684\u6267\u884c\u7ed3\u679c<\/strong><\/h3>\n

\u7cfb\u7edf\u65f6\u95f4\uff1a19:27:01<\/p>\n

\u8fd0\u884c\u65f6\u95f4\uff1aup -- min,<\/p>\n

\u5f53\u524d\u767b\u5f55\u7528\u6237\uff1a -- user<\/p>\n

\u8d1f\u8f7d\u5747\u8861(uptime) load average: 0.02, 0.03, 0.00<\/p>\n

average\u540e\u9762\u7684\u4e09\u4e2a\u6570\u5206\u522b\u662f1\u5206\u949f\u30015\u5206\u949f\u300115\u5206\u949f\u7684\u8d1f\u8f7d\u60c5\u51b5\u3002<\/p>\n

load average\u6570\u636e\u662f\u6bcf\u96945\u79d2\u949f\u68c0\u67e5\u4e00\u6b21\u6d3b\u8dc3\u7684\u8fdb\u7a0b\u6570\uff0c\u7136\u540e\u6309\u7279\u5b9a\u7b97\u6cd5\u8ba1\u7b97\u51fa\u7684\u6570\u503c\u3002\u5982\u679c\u8fd9\u4e2a\u6570\u9664\u4ee5\u903b\u8f91CPU\u7684\u6570\u91cf\uff0c\u7ed3\u679c\u9ad8\u4e8e5\u7684\u65f6\u5019\u5c31\u8868\u660e\u7cfb\u7edf\u5728\u8d85\u8d1f\u8377\u8fd0\u8f6c\u4e86<\/p><\/blockquote>\n

\u5b98\u65b9\u7684\u89e3\u91ca\uff1a\u5355\u4f4d\u65f6\u95f4\u5185\uff0c\u7cfb\u7edf\u4e2d\u53ef\u8fd0\u884c\uff08R\uff09\u548c\u4e0d\u53ef\u4e2d\u65ad\uff08D\uff09\u8fdb\u7a0b\u7684\u5e73\u5747\u8fdb\u7a0b\u6570\uff0c\u4e5f\u5c31\u662f\u5e73\u5747\u6d3b\u8dc3\u8fdb\u7a0b\u6570\u3002<\/p>\n

\u6700\u7406\u60f3\u7684\u662f\uff0c\u4e0d\u8bba\u5728\u5355CPU\u8fd8\u662f\u591aCPU\uff0c\u6bcf\u65f6\u6bcf\u523b\u6bcf\u4e2aCPU\u4e0a\u90fd\u521a\u597d\u8fd0\u884c\u7740\u4e00\u4e2a\u8fdb\u7a0b
\n\u5047\u8bbe\u6b64\u65f6\u7684load average\u4e3a2\uff1a<\/p>\n

\u5982\u679c\u57282\u4e2aCPU\u7684\u7cfb\u7edf\u4e0a\uff0c\u8868\u793aCPU\u521a\u521a\u597d\u90fd\u6709\u8fdb\u7a0b\u4f7f\u7528\uff0c\u6ca1\u6709\u7b49\u5f85\u6392\u961f\u7684\u8fdb\u7a0b\uff1b
\n\u5982\u679c\u57284\u4e2aCPU\u7cfb\u7edf\u4e0a\uff0c\u8868\u793a\u8bf4\u660eCPU\u8fd8\u7a7a\u95f22\u4e2a\uff0c\u81ea\u7136\u4e5f\u6ca1\u6709\u8fdb\u7a0b\u6392\u961f\u7b49\u5f85\uff1b
\n\u5982\u679c\u5728\u4e00\u4e2a\u5355CPU\u7684\u7cfb\u7edf\u4e0a\uff0c\u8868\u793a\u6bcf\u6b21\u53ea\u80fd\u6709\u4e00\u4e2a\u8fdb\u7a0b\u6267\u884c\uff0c\u6709\u4e00\u4e2a\u8fdb\u7a0b\u5728\u6392\u961f\uff0c\u5c5e\u4e8e\u8fc7\u8f7d\u60c5\u51b5\u3002<\/p>\n

\u7b2c\u4e8c\u884c tasks \u8fdb\u7a0b\u6570<\/h3>\n
\n\n\n\n\n\n\n\n\n
Tasks: -- total<\/th>\n\u8fdb\u7a0b\u603b\u6570<\/th>\n<\/tr>\n<\/thead>\n
-- running<\/td>\n\u6b63\u5728\u8fd0\u884c\u7684\u8fdb\u7a0b\u6570<\/td>\n<\/tr>\n
-- sleeping<\/td>\n\u7761\u7720\u7684\u8fdb\u7a0b\u6570<\/td>\n<\/tr>\n
-- stopped<\/td>\n\u505c\u6b62\u7684\u8fdb\u7a0b\u6570<\/td>\n<\/tr>\n
-- zombie<\/td>\n\u50f5\u5c38\u8fdb\u7a0b\u6570<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n

\u7b2c\u4e09\u884c cpu\u72b6\u6001<\/h3>\n
\n\n\n\n\n\n\n\n\n\n\n\n
us<\/th>\n\u7528\u6237\u7a7a\u95f4\u5360\u7528CPU\u767e\u5206\u6bd4<\/th>\n<\/tr>\n<\/thead>\n
sy<\/td>\n\u5185\u6838\u7a7a\u95f4\u5360\u7528CPU\u767e\u5206\u6bd4<\/td>\n<\/tr>\n
ni<\/td>\n\u7528\u6237\u8fdb\u7a0b\u7a7a\u95f4\u5185\u6539\u53d8\u8fc7\u4f18\u5148\u7ea7\u7684\u8fdb\u7a0b\u5360\u7528CPU\u767e\u5206\u6bd4\uff08niced\uff09<\/td>\n<\/tr>\n
id<\/td>\n\u7a7a\u95f2CPU\u767e\u5206\u6bd4<\/td>\n<\/tr>\n
wa<\/td>\n\u7b49\u5f85\u8f93\u5165\u8f93\u51fa\u7684CPU\u65f6\u95f4\u767e\u5206\u6bd4\uff08IOwait\uff09<\/td>\n<\/tr>\n
hi<\/td>\n\u786c\u4e2d\u65ad<\/td>\n<\/tr>\n
si<\/td>\n\u8f6f\u4e2d\u65ad<\/td>\n<\/tr>\n
st<\/td>\n\u88abhypervisor\u5077\u53bb\u7684\u65f6\u95f4<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n

\u7b2c\u56db\u4e94\u884c \u5185\u5b58\/swap\u4ea4\u6362\u5206\u533a \u72b6\u6001<\/h3>\n
\n\n\n\n\n\n\n\n\n\n
Mem: --k total<\/th>\n\u7269\u7406\u5185\u5b58\u603b\u91cf<\/th>\n<\/tr>\n<\/thead>\n
used<\/td>\n\u4f7f\u7528\u7684\u7269\u7406\u5185\u5b58\u603b\u91cf<\/td>\n<\/tr>\n
free<\/td>\n\u7a7a\u95f2\u5185\u5b58\u603b\u91cf<\/td>\n<\/tr>\n
buffers<\/td>\n\u7528\u4f5c\u5185\u6838\u7f13\u5b58\u7684\u5185\u5b58\u91cf<\/td>\n<\/tr>\n
Swap: --total<\/td>\n\u4ea4\u6362\u533a\u603b\u91cf<\/td>\n<\/tr>\n
cached<\/td>\n\u7f13\u51b2\u7684\u4ea4\u6362\u533a\u603b\u91cf\u3002 \u5185\u5b58\u4e2d\u7684\u5185\u5bb9\u88ab\u6362\u51fa\u5230\u4ea4\u6362\u533a\uff0c\u800c\u540e\u53c8\u88ab\u6362\u5165\u5230\u5185\u5b58\uff0c\u4f46\u4f7f\u7528\u8fc7\u7684\u4ea4\u6362\u533a\u5c1a\u672a\u88ab\u8986\u76d6\uff0c \u8be5\u6570\u503c\u5373\u4e3a\u8fd9\u4e9b\u5185\u5bb9\u5df2\u5b58\u5728\u4e8e\u5185\u5b58\u4e2d<\/strong>\u7684\u4ea4\u6362\u533a\u7684\u5927\u5c0f\u3002 \u76f8\u5e94\u7684\u5185\u5b58\u518d\u6b21\u88ab\u6362\u51fa\u65f6\u53ef\u4e0d\u5fc5\u518d\u5bf9\u4ea4\u6362\u533a\u5199\u5165\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n

\u8fdb\u7a0b\u4fe1\u606f\u533a<\/h3>\n

\u7edf\u8ba1\u4fe1\u606f\u533a\u57df\u7684\u4e0b\u65b9\u663e\u793a\u4e86\u5404\u4e2a\u8fdb\u7a0b\u7684\u8be6\u7ec6\u4fe1\u606f\u3002\u9996\u5148\u6765\u8ba4\u8bc6\u4e00\u4e0b\u5404\u5217\u7684\u542b\u4e49\u3002<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u5e8f\u53f7<\/th>\n\u5217\u540d<\/th>\n\u542b\u4e49<\/th>\n<\/tr>\n<\/thead>\n
a<\/td>\nPID<\/td>\n\u8fdb\u7a0bid<\/td>\n<\/tr>\n
b<\/td>\nPPID<\/td>\n\u7236\u8fdb\u7a0bid<\/td>\n<\/tr>\n
c<\/td>\nRUSER<\/td>\nReal user name<\/td>\n<\/tr>\n
d<\/td>\nUID<\/td>\n\u8fdb\u7a0b\u6240\u6709\u8005\u7684\u7528\u6237id<\/td>\n<\/tr>\n
e<\/td>\nUSER<\/td>\n\u8fdb\u7a0b\u6240\u6709\u8005\u7684\u7528\u6237\u540d<\/td>\n<\/tr>\n
f<\/td>\nGROUP<\/td>\n\u8fdb\u7a0b\u6240\u6709\u8005\u7684\u7ec4\u540d<\/td>\n<\/tr>\n
g<\/td>\nTTY<\/td>\n\u542f\u52a8\u8fdb\u7a0b\u7684\u7ec8\u7aef\u540d\u3002\u4e0d\u662f\u4ece\u7ec8\u7aef\u542f\u52a8\u7684\u8fdb\u7a0b\u5219\u663e\u793a\u4e3a ?<\/td>\n<\/tr>\n
h<\/td>\nPR<\/td>\n\u4f18\u5148\u7ea7<\/td>\n<\/tr>\n
i<\/td>\nNI<\/td>\nnice\u503c\u3002\u8d1f\u503c\u8868\u793a\u9ad8\u4f18\u5148\u7ea7\uff0c\u6b63\u503c\u8868\u793a\u4f4e\u4f18\u5148\u7ea7<\/td>\n<\/tr>\n
j<\/td>\nP<\/td>\n\u6700\u540e\u4f7f\u7528\u7684CPU\uff0c\u4ec5\u5728\u591aCPU\u73af\u5883\u4e0b\u6709\u610f\u4e49<\/td>\n<\/tr>\n
k<\/td>\n%CPU<\/td>\n\u4e0a\u6b21\u66f4\u65b0\u5230\u73b0\u5728\u7684CPU\u65f6\u95f4\u5360\u7528\u767e\u5206\u6bd4<\/td>\n<\/tr>\n
l<\/td>\nTIME<\/td>\n\u8fdb\u7a0b\u4f7f\u7528\u7684CPU\u65f6\u95f4\u603b\u8ba1\uff0c\u5355\u4f4d\u79d2<\/td>\n<\/tr>\n
m<\/td>\nTIME+<\/td>\n\u8fdb\u7a0b\u4f7f\u7528\u7684CPU\u65f6\u95f4\u603b\u8ba1\uff0c\u5355\u4f4d1\/100\u79d2<\/td>\n<\/tr>\n
n<\/td>\n%MEM<\/td>\n\u8fdb\u7a0b\u4f7f\u7528\u7684\u7269\u7406\u5185\u5b58<\/strong>\u767e\u5206\u6bd4<\/td>\n<\/tr>\n
o<\/td>\nVIRT<\/td>\n\u8fdb\u7a0b\u4f7f\u7528\u7684\u865a\u62df\u5185\u5b58\u603b\u91cf\uff0c\u5355\u4f4dkb\u3002VIRT=SWAP+RES<\/td>\n<\/tr>\n
p<\/td>\nSWAP<\/td>\n\u8fdb\u7a0b\u4f7f\u7528\u7684\u865a\u62df\u5185\u5b58\u4e2d\uff0c\u88ab\u6362\u51fa\u7684\u5927\u5c0f\uff0c\u5355\u4f4dkb\u3002<\/td>\n<\/tr>\n
q<\/td>\nRES<\/td>\n\u8fdb\u7a0b\u4f7f\u7528\u7684\u3001\u672a\u88ab\u6362\u51fa\u7684\u7269\u7406\u5185\u5b58\u5927\u5c0f\uff0c\u5355\u4f4dkb\u3002RES=CODE+DATA<\/td>\n<\/tr>\n
r<\/td>\nCODE<\/td>\n\u53ef\u6267\u884c\u4ee3\u7801\u5360\u7528\u7684\u7269\u7406<\/strong>\u5185\u5b58\u5927\u5c0f\uff0c\u5355\u4f4dkb<\/td>\n<\/tr>\n
s<\/td>\nDATA<\/td>\n\u53ef\u6267\u884c\u4ee3\u7801\u4ee5\u5916\u7684\u90e8\u5206(\u6570\u636e\u6bb5+\u6808)\u5360\u7528\u7684\u7269\u7406<\/strong>\u5185\u5b58\u5927\u5c0f\uff0c\u5355\u4f4dkb<\/td>\n<\/tr>\n
t<\/td>\nSHR<\/td>\n\u5171\u4eab\u5185\u5b58\u5927\u5c0f\uff0c\u5355\u4f4dkb<\/td>\n<\/tr>\n
u<\/td>\nnFLT<\/td>\n\u9875\u9762\u9519\u8bef\u6b21\u6570<\/td>\n<\/tr>\n
v<\/td>\nnDRT<\/td>\n\u6700\u540e\u4e00\u6b21\u5199\u5165\u5230\u73b0\u5728\uff0c\u88ab\u4fee\u6539\u8fc7\u7684\u9875\u9762\u6570\u3002<\/td>\n<\/tr>\n
w<\/td>\nS<\/td>\n\u8fdb\u7a0b\u72b6\u6001\u3002 D<\/strong>=\u4e0d\u53ef\u4e2d\u65ad\u7684\u7761\u7720\u72b6\u6001 R<\/strong>=\u8fd0\u884c S<\/strong>=\u7761\u7720 T<\/strong>=\u8ddf\u8e2a\/\u505c\u6b62 Z<\/strong>=\u50f5\u5c38\u8fdb\u7a0b<\/td>\n<\/tr>\n
x<\/td>\nCOMMAND<\/td>\n\u547d\u4ee4\u540d\/\u547d\u4ee4\u884c<\/td>\n<\/tr>\n
y<\/td>\nWCHAN<\/td>\n\u82e5\u8be5\u8fdb\u7a0b\u5728\u7761\u7720\uff0c\u5219\u663e\u793a\u7761\u7720\u4e2d\u7684\u7cfb\u7edf\u51fd\u6570\u540d<\/td>\n<\/tr>\n
z<\/td>\nFlags<\/td>\n\u4efb\u52a1\u6807\u5fd7\uff0c\u53c2\u8003 sched.h<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n

\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u4ec5\u663e\u793a\u6bd4\u8f83\u91cd\u8981\u7684 PID\u3001USER\u3001PR\u3001NI\u3001VIRT\u3001RES\u3001SHR\u3001S\u3001%CPU\u3001%MEM\u3001TIME+\u3001COMMAND \u5217\u3002\u53ef\u4ee5\u901a\u8fc7\u4e0b\u9762\u7684\u5feb\u6377\u952e\u6765\u66f4\u6539\u663e\u793a\u5185\u5bb9\u3002<\/p>\n

\u66f4\u6539\u663e\u793a\u5185\u5bb9<\/h3>\n

\u901a\u8fc7 f<\/strong> \u952e\u53ef\u4ee5\u9009\u62e9\u663e\u793a\u7684\u5185\u5bb9\u3002\u6309 f \u952e\u4e4b\u540e\u4f1a\u663e\u793a\u5217\u7684\u5217\u8868\uff0c\u6309 a-z \u5373\u53ef\u663e\u793a\u6216\u9690\u85cf\u5bf9\u5e94\u7684\u5217\uff0c\u6700\u540e\u6309\u56de\u8f66\u952e\u786e\u5b9a\u3002<\/p>\n

\u6309 o<\/strong> \u952e\u53ef\u4ee5\u6539\u53d8\u5217\u7684\u663e\u793a\u987a\u5e8f\u3002\u6309\u5c0f\u5199\u7684 a-z \u53ef\u4ee5\u5c06\u76f8\u5e94\u7684\u5217\u5411\u53f3\u79fb\u52a8\uff0c\u800c\u5927\u5199\u7684 A-Z \u53ef\u4ee5\u5c06\u76f8\u5e94\u7684\u5217\u5411\u5de6\u79fb\u52a8\u3002\u6700\u540e\u6309\u56de\u8f66\u952e\u786e\u5b9a\u3002<\/p>\n

\u6309\u5927\u5199\u7684 F<\/strong> \u6216 O<\/strong> \u952e\uff0c\u7136\u540e\u6309 a-z \u53ef\u4ee5\u5c06\u8fdb\u7a0b\u6309\u7167\u76f8\u5e94\u7684\u5217\u8fdb\u884c\u6392\u5e8f\u3002\u800c\u5927\u5199\u7684 R<\/strong> \u952e\u53ef\u4ee5\u5c06\u5f53\u524d\u7684\u6392\u5e8f\u5012\u8f6c\u3002<\/p>\n

\u5e38\u7528\u547d\u4ee4<\/h2>\n

\u5728top\u57fa\u672c\u89c6\u56fe\u4e2d\uff0c\u6309\u952e\u76d8\u6570\u5b57\u201c1\u201d\uff0c\u53ef\u76d1\u63a7\u6bcf\u4e2a\u903b\u8f91CPU\u7684\u72b6\u51b5<\/p>\n

b \u9ad8\u4eae\u663e\u793a\u5f53\u524d\u8fd0\u884c\u8fdb\u7a0b<\/p>\n

k \u7ec8\u6b62\u4e00\u4e2a\u8fdb\u7a0b\u3002\u7cfb\u7edf\u5c06\u63d0\u793a\u7528\u6237\u8f93\u5165\u9700\u8981\u7ec8\u6b62\u7684\u8fdb\u7a0bPID\uff0c\u4ee5\u53ca\u9700\u8981\u53d1\u9001\u7ed9\u8be5\u8fdb\u7a0b\u4ec0\u4e48\u6837\u7684\u4fe1\u53f7\u3002\u4e00\u822c\u7684\u7ec8\u6b62\u8fdb\u7a0b\u53ef\u4ee5\u4f7f\u752815\u4fe1\u53f7\uff1b\u5982\u679c\u4e0d\u80fd\u6b63\u5e38\u7ed3\u675f\u90a3\u5c31\u4f7f\u7528\u4fe1\u53f79\u5f3a\u5236\u7ed3\u675f\u8be5\u8fdb\u7a0b\u3002\u9ed8\u8ba4\u503c\u662f\u4fe1\u53f715\u3002<\/p>\n

M \u6839\u636e\u9a7b\u7559\u5185\u5b58\u5927\u5c0f\u8fdb\u884c\u6392\u5e8f\u3002<\/p>\n

P \u6839\u636eCPU\u4f7f\u7528\u767e\u5206\u6bd4\u5927\u5c0f\u8fdb\u884c\u6392\u5e8f\u3002<\/p>\n

T \u6839\u636e\u65f6\u95f4\/\u7d2f\u8ba1\u65f6\u95f4\u8fdb\u884c\u6392\u5e8f\u3002<\/p>\n

R \u53cd\u5e8f<\/p>\n

s \u6539\u53d8\u4e24\u6b21\u5237\u65b0\u4e4b\u95f4\u7684\u5ef6\u8fdf\u65f6\u95f4\u3002\uff08\u53ef\u4ee5\u5728top\u53c2\u6570\u65f6-d\uff09<\/p>\n

c \u663e\u793a\u5b8c\u6574\u547d\u4ee4<\/p>\n

V \u6811\u89c6\u56fe<\/p>\n

t&m \u5207\u6362\u4efb\u52a1\uff08cpu\u548ctasks\uff09&\u5185\u5b58\u4fe1\u606f\u7684\u663e\u793a\uff08\u66f4\u52a0\u53ef\u89c6\u5316\/\u4e0d\u663e\u793a\uff09<\/p>\n

q \u9000\u51fa\u7a0b\u5e8f<\/p>\n

A: \u5207\u6362\u4ea4\u66ff\u663e\u793a\u6a21\u5f0f<\/h3>\n

\u8fd9\u4e2a\u547d\u4ee4\u5728\u5168\u5c4f\u548c\u4ea4\u66ff\u6a21\u5f0f\u95f4\u5207\u6362\u3002\u5728\u4ea4\u66ff\u6a21\u5f0f\u4e0b\u4f1a\u663e\u793a4\u4e2a\u7a97\u53e3(\u8bd1\u6ce8\uff1a\u5206\u522b\u5173\u6ce8\u4e0d\u540c\u7684\u5b57\u6bb5):<\/p>\n

Def (\u9ed8\u8ba4\u5b57\u6bb5\u7ec4)<\/p>\n

Job (\u4efb\u52a1\u5b57\u6bb5\u7ec4)<\/p>\n

Mem (\u5185\u5b58\u5b57\u6bb5\u7ec4)<\/p>\n

Usr (\u7528\u6237\u5b57\u6bb5\u7ec4)<\/p>\n

\u8fd9\u56db\u7ec4\u5b57\u6bb5\u5171\u6709\u4e00\u4e2a\u72ec\u7acb\u7684\u53ef\u914d\u7f6e\u7684\u6982\u62ec\u533a\u57df\u548c\u5b83\u81ea\u5df1\u7684\u53ef\u914d\u7f6e\u4efb\u52a1\u533a\u57df\u30024\u4e2a\u7a97\u53e3\u4e2d\u53ea\u6709\u4e00\u4e2a\u7a97\u53e3\u662f\u5f53\u524d\u7a97\u53e3\u3002\u5f53\u524d\u7a97\u53e3\u7684\u540d\u79f0\u663e\u793a\u5728\u5de6\u4e0a\u65b9\u3002(\u8bd1\u6ce8\uff1a\u53ea\u6709\u5f53\u524d\u7a97\u53e3\u624d\u4f1a\u63a5\u53d7\u4f60\u952e\u76d8\u4ea4\u4e92\u547d\u4ee4)<\/p>\n

\u6211\u4eec\u53ef\u4ee5\u7528'a'\u548c'w'\u57284\u4e2a \u7a97\u53e3\u95f4\u5207\u6362\u3002'a'\u79fb\u5230\u540e\u4e00\u4e2a\u7a97\u53e3\uff0c'w'\u79fb\u5230\u524d\u4e00\u4e2a\u7a97\u53e3\u3002\u7528'g'\u547d\u4ee4\u4f60\u53ef\u4ee5\u8f93\u5165\u4e00\u4e2a\u6570\u5b57\u6765\u9009\u62e9\u5f53\u524d\u7a97\u53e3\u3002<\/p>\n

I: irix mode<\/h3>\n

\u5bf9\u4e8e%cpu\u8fd9\u4e00\u9879\u5728\u4e0a\u9762\u4e24\u79cd\u6a21\u5f0f\u4e0b\u662f\u4e0d\u4e00\u6837\u7684\uff0c\u5728irix mode\u4e0b\uff0c%cpu\u6307\u7684\u662f\u672c\u8fdb\u7a0b\u5728\u672c\u8fdb\u7a0b\u8fd0\u884c\u7684cpu\u4e2d\uff08\u53ef\u80fd\u662f\u591acpu\u7684\u7cfb\u7edf\uff09\u5360\u7528\u7684\u767e\u5206\u6bd4<\/p>\n

\u5bf9\u4e8esolaris mode \u5728irix\u7684\u57fa\u7840\u4e0a\u9664\u4ee5cpu\u4e2a\u6570<\/p>\n

\u5e38\u89c1\u63d0\u95ee<\/h2>\n

\u4ec0\u4e48\u662fNICE\u503c?<\/strong><\/h3>\n

NICE\u503c\u5e94\u8be5\u662f\u719f\u6089Linux\/UNIX\u7684\u4eba\u5f88\u4e86\u89e3\u7684\u6982\u5ff5\u4e86\uff0c\u5b83\u662f\u53cd\u5e94\u4e00\u4e2a\u8fdb\u7a0b\u201c\u4f18\u5148\u7ea7\u201d\u72b6\u6001\u7684\u503c\uff0c\u5176\u53d6\u503c\u8303\u56f4\u662f-20\u81f319\uff0c\u4e00\u517140\u4e2a\u7ea7\u522b\u3002<\/p>\n

\u8fd9\u4e2a\u503c\u8d8a\u5c0f\uff0c\u8868\u793a\u8fdb\u7a0b\u201d\u4f18\u5148\u7ea7\u201d\u8d8a\u9ad8\uff0c\u800c\u503c\u8d8a\u5927\u201c\u4f18\u5148\u7ea7\u201d\u8d8a\u4f4e\u3002<\/strong><\/p>\n

nice\u503c\u867d\u7136\u4e0d\u662fpriority\uff0c\u4f46\u662f\u5b83\u786e\u5b9e\u53ef\u4ee5\u5f71\u54cd\u8fdb\u7a0b\u7684\u4f18\u5148\u7ea7\u3002<\/strong><\/p>\n

\u5728\u82f1\u8bed\u4e2d\uff0c\u5982\u679c\u6211\u4eec\u5f62\u5bb9\u4e00\u4e2a\u4ebanice\uff0c\u90a3\u4e00\u822c\u8bf4\u660e\u8fd9\u4e2a\u4eba\u7684\u4eba\u7f18\u6bd4\u8f83\u597d\u3002\u4ec0\u4e48\u6837\u7684\u4eba\u4eba\u7f18\u597d?\u5f80\u5f80\u662f\u8c26\u8ba9\u3001\u6709\u793c\u8c8c\u7684\u4eba\u3002<\/p>\n

\u6bd4\u5982\uff0c\u4f60\u8ddf\u4e00\u4e2anice\u7684\u4eba\u4e00\u8d77\u53bb\u5403\u5348\u996d\uff0c\u70b9\u4e86\u4e24\u4e2a\u4e00\u6837\u7684\u996d\uff0c\u5148\u4e0a\u4e86\u4e00\u4efd\u540e\uff0cnice\u7684\u90a3\u4f4d\u4e00\u822c\u90fd\u4f1a\u8bf4\uff1a\u201c\u4f60\u5148\u5403\u4f60\u5148\u5403\uff01\u201d\uff0c\u8fd9\u5c31\u662f\u4eba\u7f18\u597d\uff0c\u8fd9\u4ebanice\uff01\u4f46\u662f\u5982\u679c\u53e6\u4e00\u4efd\u4e0a\u7684\u5f88\u665a\uff0c\u90a3\u4e48\u8fd9\u4f4dnice\u7684\u4eba\u5c31\u8981\u997f\u7740\u4e86\u3002<\/p>\n

\u8fd9\u8bf4\u660e\u4ec0\u4e48?<\/p>\n

\u8d8anice\u7684\u4eba\u62a2\u5360\u8d44\u6e90\u7684\u80fd\u529b\u5c31\u8d8a\u5dee\uff0c\u800c\u8d8a\u4e0dnice\u7684\u4eba\u62a2\u5360\u80fd\u529b\u5c31\u8d8a\u5f3a\u3002\u8fd9\u5c31\u662fnice\u503c\u5927\u5c0f\u7684\u542b\u4e49\uff0cnice\u503c\u8d8a\u4f4e\uff0c\u8bf4\u660e\u8fdb\u7a0b\u8d8a\u4e0dnice\uff0c\u62a2\u5360cpu\u7684\u80fd\u529b\u5c31\u8d8a\u5f3a\uff0c\u4f18\u5148\u7ea7\u5c31\u8d8a\u9ad8<\/p>\n

\u76f8\u4e92\u5173\u7cfb\uff1a\u6709\u4e2a\u4e00\u822c\u516c\u5f0f\uff0cPRI(new) = PRI(old) + NI<\/p>\n

\u4f46\u662f\uff0cPRI \u662f OS \u52a8\u6001\u8c03\u6574\u7684\uff0c\u4f46\u662f PRI \u7684\u6700\u7ec8\u503c\u8fd8\u9700\u8981\u7531 OS \u5206\u6790\u51b3\u5b9a\u7684\uff08\u867d\u7136 NI \u4f1a\u5f71\u54cd PRI\uff09<\/p>\n

\u50f5\u5c38\u8fdb\u7a0b\u548c\u5b64\u513f\u8fdb\u7a0b<\/h3>\n

\u5b64\u513f\u8fdb\u7a0b\uff1a\u4e00\u4e2a\u7236\u8fdb\u7a0b\u9000\u51fa\uff0c\u800c\u5b83\u7684\u6bcf\u4e2a\u5b50\u8fdb\u7a0b\u8fd8\u5728\u8fdb\u884c\uff0c\u90a3\u4e9b\u5b50\u8fdb\u7a0b\u79f0\u4e3a\u5b64\u513f\u8fdb\u7a0b<\/p>\n

\u50f5\u5c38\u8fdb\u7a0b\uff1a\u4e00\u4e2a\u8fdb\u7a0b\u4f7f\u7528fork\u521b\u5efa\u5b50\u8fdb\u7a0b\uff0c\u5b50\u8fdb\u7a0b\u5148\u4e8e\u7236\u8fdb\u7a0b\u9000\u51fa\uff0c\u800c\u7236\u8fdb\u7a0b\u6ca1\u6709\u8c03\u7528wait\u6216waitid\uff0c\u5b50\u8fdb\u7a0b\u7684\u8fdb\u7a0b\u63cf\u8ff0\u7b26\u4ecd\u4fdd\u5b58\u5728\u7cfb\u7edf\u4e2d\u3002<\/p>\n

load average<\/h3>\n

\u89c1\u4e0a\u6587<\/p>\n

\u901a\u8fc7top\u67e5\u770b\u7a0b\u5e8fcpu\u4f7f\u7528\u7387\u4e3a\u4ec0\u4e48\u4f1a\u8d85\u8fc7100%<\/h3>\n

%CPU\u8868\u793a\u7684\u662f\u4e0a\u6b21\u66f4\u65b0\u5230\u73b0\u5728\u7684CPU\u65f6\u95f4\u5360\u7528\u767e\u5206\u6bd4\uff0c\u5728\u5b9e\u9645\u7684SMP\u73af\u5883\u4e2d\uff0c\u5982\u679c\u8fdb\u7a0b\u6709\u591a\u4e2a\u7ebf\u7a0b\uff0c\u4e14top\u547d\u4ee4\u4e0d\u5728\u7ebf\u7a0b\u6a21\u5f0f\u65f6\uff0c\u90a3\u4e48\u53ef\u80fd\u5bfc\u81f4\u7ed3\u679c\u5927\u4e8e100%\u3002<\/p>\n

\u5bf9\u4e8e\u7ebf\u7a0b\u6a21\u5f0f\uff0c\u56e0\u4e3atop\u547d\u4ee4\u9ed8\u8ba4\u663e\u793a\u8fdb\u7a0b\u7684\u6570\u636e\uff0c\u5982\u679c\u4f7f\u7528top -H\uff0c\u8be5\u9009\u9879\u4f1a\u5217\u51fa\u6240\u6709Linux\u7ebf\u7a0b\u3002\u5982\u679ctop\u5df2\u7ecf\u8fd0\u884c\u4e86\uff0c\u4e5f\u53ef\u4ee5\u901a\u8fc7\u6309\u201cH\u201d\u952e\u5c06\u7ebf\u7a0b\u67e5\u770b\u6a21\u5f0f\u5207\u6362\u4e3a\u5f00\u6216\u5173\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u4e4b\u524d\u5728\u770btop\u7684\u516b\u80a1\u7684\u65f6\u5019\uff0c\u53d1\u73b0\u5199top\u7684\u5927\u90e8\u5206blog\u5e76\u6ca1\u6709\u5b8c\u5168\u628a\u6574\u4e2a\u6982\u5ff5\u8bb2\u5168\uff0c\u6709\u5fc5\u8981\u518d\u6c47\u603b\u4e00\u4e0b \u53c2\u8003\u6587\u7ae0 \uff1a man top …<\/p>","protected":false},"author":1,"featured_media":32,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-30","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-4"],"_links":{"self":[{"href":"https:\/\/blog.maoyulong.club\/index.php?rest_route=\/wp\/v2\/posts\/30","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.maoyulong.club\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.maoyulong.club\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.maoyulong.club\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.maoyulong.club\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=30"}],"version-history":[{"count":1,"href":"https:\/\/blog.maoyulong.club\/index.php?rest_route=\/wp\/v2\/posts\/30\/revisions"}],"predecessor-version":[{"id":31,"href":"https:\/\/blog.maoyulong.club\/index.php?rest_route=\/wp\/v2\/posts\/30\/revisions\/31"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.maoyulong.club\/index.php?rest_route=\/wp\/v2\/media\/32"}],"wp:attachment":[{"href":"https:\/\/blog.maoyulong.club\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=30"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.maoyulong.club\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=30"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.maoyulong.club\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=30"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}