{"id":43010,"date":"2025-06-10T16:00:49","date_gmt":"2025-06-10T08:00:49","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/43010.html"},"modified":"2025-06-10T16:00:49","modified_gmt":"2025-06-10T08:00:49","slug":"%e6%b6%88%e8%80%97linuxcentos7%e6%9c%8d%e5%8a%a1%e5%99%a8cpu%e3%80%81%e5%86%85%e5%ad%98%e5%92%8c%e7%a3%81%e7%9b%98%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/43010.html","title":{"rendered":"\u6d88\u8017Linux(Centos7)\u670d\u52a1\u5668cpu\u3001\u5185\u5b58\u548c\u78c1\u76d8\u65b9\u6cd5"},"content":{"rendered":"

\u4e00\u3001CPU\u4f7f\u7528\u7387<\/span><\/p>\n

1<\/span>\u3001\u811a\u672c\u51c6\u5907<\/span><\/span><\/h5>\n

（<\/span>1<\/span>）\u521b\u5efa<\/span>shell\u811a\u672c\u6587\u4ef6：<\/span><\/span><\/p>\n

cd \/opt<\/p>\n

vim cpu.sh<\/p>\n

（<\/span><\/span>2<\/span><\/span>）\u8f93\u5165\u4ee5\u4e0b\u811a\u672c\u5185\u5bb9：<\/span><\/span><\/p>\n

#!\/bin\/bash<\/p>\n

FILE_NAME=`basename $0`<\/p>\n

cpunum=$2<\/p>\n

pid_array=()<\/p>\n

function usage()<\/p>\n

{<\/p>\n

echo "Usage:$FILE_NAME consume cpu_number|release —–the value of cpu_number is an integer,such as 1,2,3"<\/p>\n

echo "Example: $FILE_NAME consume 12"<\/p>\n

echo "\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 $FILE_NAME release"<\/p>\n

}<\/p>\n

function endless_loop()<\/p>\n

{<\/p>\n

echo -ne "i=0;<\/p>\n

while true<\/p>\n

do<\/p>\n

\u00a0\u00a0\u00a0 i=i+100;<\/p>\n

\u00a0\u00a0\u00a0 i=100<\/p>\n

done" | \/bin\/bash &<\/p>\n

}<\/p>\n

function consume()<\/p>\n

{<\/p>\n

for i in `seq $1`<\/p>\n

do<\/p>\n

\u00a0\u00a0\u00a0 endless_loop<\/p>\n

\u00a0\u00a0\u00a0 pid_array[$i]=$!<\/p>\n

done<\/p>\n

echo "consume cpu resources process ids are: ${pid_array[*]}"<\/p>\n

}<\/p>\n

\u00a0function release()<\/p>\n

{<\/p>\n

for pid in $(ps -ef |grep \/bin\/bash |grep -v grep |awk '{print $2}' |xargs)<\/p>\n

do<\/p>\n

\u00a0\u00a0\u00a0 kill -9 $pid<\/p>\n

done<\/p>\n

}<\/p>\n

\u00a0function main()<\/p>\n

{<\/p>\n

case "$1" in<\/p>\n

\u00a0\u00a0\u00a0 consume) consume $cpunum;;<\/p>\n

\u00a0\u00a0\u00a0 release) release;;<\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *) usage;exit 1;;<\/p>\n

esac<\/p>\n

}<\/p>\n

main $* <\/p>\n

2<\/span><\/span>\u3001\u8fd0\u884c\u811a\u672c<\/span><\/span> \u4fdd\u5b58\u6587\u4ef6，\u8fd0\u884c\u6b64<\/span><\/span>shell<\/span><\/span>\u811a\u672c<\/span><\/span><\/p>\n

sh cpu.sh consume \u6240\u9700\u8981\u5360\u7528\u7684cpu\u6838\u6570<\/p>\n

\u6ce8\u610f：\u5728\u8fd0\u884c\u8be5\u811a\u672c\u65f6，\u9700\u8981\u5148\u786e\u8ba4\u5f53\u524d\u670d\u52a1\u5668\u7684cpu\u6838\u6570\u4e4b\u540e\u5728\u8fd0\u884c，\u4ee5\u514d\u51fa\u73b0CPU\u4f7f\u7528\u7387\u592a\u9ad8\u5bfc\u81f4\u670d\u52a1\u5668\u5b95\u673a\u3002<\/p>\n

\u4f8b\u5982\u5f53\u524d\u670d\u52a1\u5668\u7684\u914d\u7f6e\u4e3a8\u683816G，\u9700\u8981\u5c06\u670d\u52a1\u5668\u7684cpu\u4f7f\u7528\u7387\u63d0\u9ad8\u81f310%-20%，\u4f60\u9700\u8981\u4f7f\u7528\u8be5\u811a\u672c\u8fd0\u884c\u5360\u75281\u6838CPU，\u4ee5\u8fbe\u5230\u670d\u52a1\u5668CPU\u8d44\u6e90\u4f7f\u7528\u7387\u8fbe\u523010%\u5de6\u53f3\u7684\u76ee\u7684，\u6b64\u65f6\u8fd0\u884c\u547d\u4ee4\u4e3a:<\/p>\n

sh cpu.sh consume 1<\/p>\n

3<\/span><\/span>\u3001\u53ef\u4f7f\u7528<\/span><\/span> top <\/span><\/span>\u547d\u4ee4\u67e5\u770b<\/span><\/span>cpu<\/span><\/span>\u8fd0\u884c\u662f\u5426\u8fbe\u6807<\/span><\/span><\/p>\n

\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250610080048-6847e63058c35.png\"<\/p>\n

3<\/span><\/span>\u3001\u8d44\u6e90\u56de\u6536：\u8d44\u6e90\u91ca\u653e\u547d\u4ee4<\/span><\/span><\/p>\n

sh cpu.sh release<\/p>\n

\u4e8c\u3001\u5185\u5b58\u4f7f\u7528\u7387<\/span><\/span> 1<\/span><\/span>\u3001\u811a\u672c\u51c6\u5907<\/span><\/span> （<\/span><\/span>1<\/span><\/span>）\u521b\u5efa\u811a\u672c\u6587\u4ef6：<\/span><\/span><\/p>\n

cd \/opt<\/p>\n

vim memory.sh<\/p>\n

（<\/span><\/span>2<\/span><\/span>）\u8f93\u5165\u4ee5\u4e0b\u811a\u672c\u5185\u5bb9：<\/span><\/span><\/p>\n

#!\/bin\/bash
\nFILE_NAME=`basename $0`
\nmemsize=$2
\nfunction usage()
\n{
\necho "Usage:$FILE_NAME consume memory_size|release —–the value of memory_size like 100M 2G and etc"
\necho "Example: $FILE_NAME consume 1G"
\necho " $FILE_NAME release"
\n}
\nfunction consume()
\n{
\nif [ -d \/tmp\/memory ];then
\n echo "\/tmp\/memory already exists"
\nelse
\n mkdir \/tmp\/memory
\nfi
\nmount -t tmpfs -o size=$1 tmpfs \/tmp\/memory
\ndd if=\/dev\/zero of=\/tmp\/memory\/block<\/p>\n

}
\nfunction release()
\n{
\nrm \/tmp\/memory\/block;ret=$?
\nif [ $ret != 0 ]; then
\n echo "remove memory data failed"
\n return $ret
\nfi
\numount \/tmp\/memory;ret=$?
\nif [ $ret != 0 ]; then
\n echo "umount memory filedir failed"
\n return $ret
\nfi
\nrmdir \/tmp\/memory;ret=$?
\nif [ $ret != 0 ]; then
\n echo "remove memory filedir failed"
\n return $ret
\nfi
\n}
\nfunction main()
\n{
\ncase "$1" in
\n consume) consume $memsize;;
\n release) release;;
\n *) usage;exit 1;;
\nesac
\n}
\nmain $* <\/p>\n

2<\/span><\/span>\u3001\u811a\u672c\u8fd0\u884c<\/span><\/span> \u4fdd\u5b58\u6587\u4ef6，\u8fd0\u884c\u6b64<\/span><\/span>shell<\/span><\/span>\u811a\u672c<\/span><\/span><\/p>\n

sh memory.sh consume \u6240\u9700\u8981\u5360\u7528\u7684\u5185\u5b58<\/p>\n

\u6ce8\u610f：\u5728\u8fd0\u884c\u8be5\u811a\u672c\u65f6，\u9700\u8981\u5148\u786e\u8ba4\u5f53\u524d\u670d\u52a1\u5668\u7684\u5185\u5b58\u5927\u5c0f\u4e4b\u540e\u518d\u8fd0\u884c，\u4ee5\u514d\u51fa\u73b0\u5185\u5b58\u4f7f\u7528\u7387\u592a\u9ad8\u5bfc\u81f4\u670d\u52a1\u5668\u5b95\u673a\u3002<\/span><\/span><\/p>\n

\u4f8b\u5982\u5f53\u524d\u670d\u52a1\u5668\u7684\u914d\u7f6e\u4e3a<\/span>8<\/span>\u6838<\/span>16G<\/span>，\u9700\u8981\u5c06\u670d\u52a1\u5668\u7684\u5185\u5b58\u4f7f\u7528\u7387\u63d0\u9ad8\u81f3<\/span>10%-20%<\/span>，\u5219\u8fd0\u884c\u5360\u7528<\/span>5G<\/span>，\u4ee5\u8fbe\u5230\u670d\u52a1\u5668\u5185\u5b58\u8d44\u6e90\u4f7f\u7528\u7387\u8fbe\u5230<\/span>10%<\/span>\u5de6\u53f3\u7684\u76ee\u7684，\u6b64\u65f6\u8fd0\u884c\u547d\u4ee4\u4e3a<\/span>:<\/span><\/span><\/p>\n

sh memory.sh consume 1G<\/p>\n

3<\/span><\/span>\u3001\u8d44\u6e90\u56de\u6536：\u8d44\u6e90\u91ca\u653e\u547d\u4ee4<\/span><\/span><\/p>\n

sh memory.sh release<\/p>\n

\u4e09\u3001\u5728\u78c1\u76d8\u4e2d\u5199\u5165\u76f8\u5e94\u5927\u5c0f\u7684\u6587\u4ef6：<\/p>\n

—-\u521b\u5efa\u6587\u4ef611G dd if=\/dev\/zero of=test1.txt count=10 bs=1024M —-\u521b\u5efa\u6587\u4ef616G dd if=\/dev\/zero of=test2.txt count=15 bs=1024M —-\u521b\u5efa\u6587\u4ef625G dd if=\/dev\/zero of=test1.txt count=23 bs=1024M —-\u521b\u5efa\u6587\u4ef6129G dd if=\/dev\/zero of=test9.txt count=60 bs=2048M —-\u521b\u5efa\u6587\u4ef6168G \u00a0dd if=\/dev\/zero of=test1.txt count=80 bs=2000M —-\u521b\u5efa\u6587\u4ef6258G dd if=\/dev\/zero of=test11.txt count=120 bs=2048M —-\u521b\u5efa\u6587\u4ef6275G dd if=\/dev\/zero of=test10.txt count=128 bs=2048M<\/p>\n","protected":false},"excerpt":{"rendered":"

\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb839\u6b21\uff0c\u70b9\u8d5e8\u6b21\uff0c\u6536\u85cf21\u6b21\u3002\u6ce8\u610f\uff1a\u5728\u8fd0\u884c\u8be5\u811a\u672c\u65f6\uff0c\u9700\u8981\u5148\u786e\u8ba4\u5f53\u524d\u670d\u52a1\u5668\u7684cpu\u6838\u6570\u4e4b\u540e\u5728\u8fd0\u884c\uff0c\u4ee5\u514d\u51fa\u73b0CPU\u4f7f\u7528\u7387\u592a\u9ad8\u5bfc\u81f4\u670d\u52a1\u5668\u5b95\u673a\u3002\u6ce8\u610f\uff1a\u5728\u8fd0\u884c\u8be5\u811a\u672c\u65f6\uff0c\u9700\u8981\u5148\u786e\u8ba4\u5f53\u524d\u670d\u52a1\u5668\u7684\u5185\u5b58\u5927\u5c0f\u4e4b\u540e\u518d\u8fd0\u884c\uff0c\u4ee5\u514d\u51fa\u73b0\u5185\u5b58\u4f7f\u7528\u7387\u592a\u9ad8\u5bfc\u81f4\u670d\u52a1\u5668\u5b95\u673a\u3002sh cpu.sh consume \u6240\u9700\u8981\u5360\u7528\u7684cpu\u6838\u6570\u3002\uff0c\u9700\u8981\u5c06\u670d\u52a1\u5668\u7684\u5185\u5b58\u4f7f\u7528\u7387\u63d0\u9ad8\u81f3\u3002\u3001\u8d44\u6e90\u56de\u6536\uff1a\u8d44\u6e90\u91ca\u653e\u547d\u4ee4\u3002—-\u521b\u5efa\u6587\u4ef6129G\u3002—-\u521b\u5efa\u6587\u4ef6168G\u3002—-\u521b\u5efa\u6587\u4ef6258G\u3002—-\u521b\u5efa\u6587\u4ef6275G\u3002—-\u521b\u5efa\u6587\u4ef611G\u3002—-\u521b\u5efa\u6587\u4ef616G\u3002—-\u521b\u5efa\u6587\u4ef625G\u3002<\/p>\n","protected":false},"author":2,"featured_media":43009,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[58,43,44],"topic":[],"class_list":["post-43010","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-linux","tag-43","tag-44"],"yoast_head":"\n\u6d88\u8017Linux(Centos7)\u670d\u52a1\u5668cpu\u3001\u5185\u5b58\u548c\u78c1\u76d8\u65b9\u6cd5 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/43010.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u6d88\u8017Linux(Centos7)\u670d\u52a1\u5668cpu\u3001\u5185\u5b58\u548c\u78c1\u76d8\u65b9\u6cd5 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb839\u6b21\uff0c\u70b9\u8d5e8\u6b21\uff0c\u6536\u85cf21\u6b21\u3002\u6ce8\u610f\uff1a\u5728\u8fd0\u884c\u8be5\u811a\u672c\u65f6\uff0c\u9700\u8981\u5148\u786e\u8ba4\u5f53\u524d\u670d\u52a1\u5668\u7684cpu\u6838\u6570\u4e4b\u540e\u5728\u8fd0\u884c\uff0c\u4ee5\u514d\u51fa\u73b0CPU\u4f7f\u7528\u7387\u592a\u9ad8\u5bfc\u81f4\u670d\u52a1\u5668\u5b95\u673a\u3002\u6ce8\u610f\uff1a\u5728\u8fd0\u884c\u8be5\u811a\u672c\u65f6\uff0c\u9700\u8981\u5148\u786e\u8ba4\u5f53\u524d\u670d\u52a1\u5668\u7684\u5185\u5b58\u5927\u5c0f\u4e4b\u540e\u518d\u8fd0\u884c\uff0c\u4ee5\u514d\u51fa\u73b0\u5185\u5b58\u4f7f\u7528\u7387\u592a\u9ad8\u5bfc\u81f4\u670d\u52a1\u5668\u5b95\u673a\u3002sh cpu.sh consume \u6240\u9700\u8981\u5360\u7528\u7684cpu\u6838\u6570\u3002\uff0c\u9700\u8981\u5c06\u670d\u52a1\u5668\u7684\u5185\u5b58\u4f7f\u7528\u7387\u63d0\u9ad8\u81f3\u3002\u3001\u8d44\u6e90\u56de\u6536\uff1a\u8d44\u6e90\u91ca\u653e\u547d\u4ee4\u3002----\u521b\u5efa\u6587\u4ef6129G\u3002----\u521b\u5efa\u6587\u4ef6168G\u3002----\u521b\u5efa\u6587\u4ef6258G\u3002----\u521b\u5efa\u6587\u4ef6275G\u3002----\u521b\u5efa\u6587\u4ef611G\u3002----\u521b\u5efa\u6587\u4ef616G\u3002----\u521b\u5efa\u6587\u4ef625G\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.wsisp.com\/helps\/43010.html\" \/>\n<meta property=\"og:site_name\" content=\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-10T08:00:49+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/06\/20250610080048-6847e63058c35.png\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/43010.html\",\"url\":\"https:\/\/www.wsisp.com\/helps\/43010.html\",\"name\":\"\u6d88\u8017Linux(Centos7)\u670d\u52a1\u5668cpu\u3001\u5185\u5b58\u548c\u78c1\u76d8\u65b9\u6cd5 - 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