尊龙凯时人生就是搏

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Ò»¡¢cgroup

cgroupÊÇLinuxÄÚºËÌṩµÄ×ÊÔ´ÖÎÀí»úÖÆ£¬Í¨¹ýËüÎÒÃÇ¿ÉÒÔ½«Àú³Ì×éÖ¯ÔÚÒ»Æ𣬲¢¶ÔÕâЩÀú³Ì×é¾ÙÐÐ×ÊÔ´ÏÞÖƺͿØÖÆ¡£cgroup¿ÉÒÔ¿ØÖƺÍÏÞÖÆCPU¡¢ÄÚ´æ¡¢I/OµÈϵͳ×ÊÔ´µÄʹÓá£

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sudo apt-get install cgroup-tools

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½¨Éècgroup

ÎÒÃÇ¿ÉÒÔʹÓÃcgcreateÏÂÁîÀ´½¨ÉèÒ»¸öcgroup£¬ÀýÈ磬½¨ÉèÒ»¸öÃûΪmygroupµÄcgroup£º

sudo cgcreate -g cpu,memory:mygroup

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ÉÏÊöÏÂÁÉèÁËÒ»¸öÃûΪmygroupµÄcgroup£¬²¢ÇÒͬʱ¶ÔÆä¾ÙÐÐÁËCPUºÍÄÚ´æµÄÏÞÖÆ¡£

ÉèÖÃcgroupµÄ×ÊÔ´ÏÞÖÆ

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sudo cgset -r cpu.cfs_quota_us=50000 -r memory.limit_in_bytes=1G mygroup

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ÉÏÊöÏÂÁmygroupµÄCPUÏÞÖÆΪ×î¶àʹÓÃ50%µÄʱ¼äƬ£¬²¢½«ÄÚ´æÏÞÖÆΪ×î¶àʹÓÃ1GBµÄÄÚ´æ¡£

½«Àú³Ì¼ÓÈëcgroup

×îºó£¬ÎÒÃÇ¿ÉÒÔʹÓÃcgclassifyÏÂÁÀú³Ì¼ÓÈëµ½Ö¸¶¨µÄcgroupÖС£ÀýÈ磬½«Àú³ÌPIDΪ12345µÄÀú³Ì¼ÓÈëµ½mygroup£º

sudo cgclassify -g cpu,memory:mygroup 12345

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ÏÖÔÚ£¬Àú³ÌPIDΪ12345µÄÀú³Ì½«Êܵ½mygroupµÄ×ÊÔ´ÏÞÖÆ¡£

¶þ¡¢ulimit

³ýÁËcgroup£¬Linux»¹ÌṩÁËÁíÒ»¸öÇ¿Ê¢µÄ×ÊÔ´¿ØÖƹ¤¾ßulimit¡£ulimitÔÊÐíÎÒÃÇÏÞÖƵ¥¸öÓû§¿ÉÒÔʹÓõÄϵͳ×ÊÔ´¡£

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ulimit -f

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ÎÒÃÇ¿ÉÒÔʹÓÃulimitÏÂÁîÀ´ÉèÖÃ×ÊÔ´ÏÞÖÆ¡£ÀýÈ磬½«×î´óÎļþ¾ÞϸÏÞÖÆÉèÖÃΪ1GB£º

ulimit -f 1000000000

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ÁíÍ⣬ÎÒÃÇ»¹¿ÉÒÔʹÓÃulimitÏÂÁîÉèÖÃÆäËû×ÊÔ´ÏÞÖÆ£¬ÈçCPUʱ¼ä¡¢ÄÚ´æ¡¢·­¿ªÎļþÊýµÈ¡£

ÓÀÊÀÐÞ¸Ä×ÊÔ´ÏÞÖÆ

ͨ¹ýulimitÏÂÁîÉèÖõÄ×ÊÔ´ÏÞÖƽö¶ÔÄ¿½ñ»á»°ÓÐÓã¬Ò»µ©»á»°¿¢Ê£¬ÉèÖý«Ê§Ð§¡£ÈôÊÇÏëÒªÓÀÊÀÐÞ¸Ä×ÊÔ´ÏÞÖÆ£¬ÎÒÃÇ¿ÉÒÔÐÞ¸ÄϵͳÉèÖÃÎļþ/etc/security/limits.conf¡£

ÀýÈ磬ÈôÊÇÏëÒª½«×î´ó·­¿ªÎļþÊýÏÞÖÆÐÞ¸ÄΪ10000£¬¿ÉÒÔÔÚ/etc/security/limits.confÖмÓÈëÒÔÏÂÉèÖãº

*    hard    nofile    10000

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±¾ÎÄÏÈÈÝÁËÔõÑùʹÓÃlinux¾ÙÐÐϵͳ×ÊÔ´ÏÞÖƺͿØÖÆ¡£ÎÒÃÇÖصãÏÈÈÝÁËcgroupºÍulimitÕâÁ½¸ö³£ÓõŤ¾ß£¬²¢¸ø³öÁËÏìÓ¦µÄʹÓÃʾÀý¡£Í¨¹ýºÏÀíµØʹÓÃÕâЩ¹¤¾ß£¬ÎÒÃÇ¿ÉÒÔÓÐÓõؿØÖÆϵͳ×ÊÔ´µÄʹÓ㬰ü¹ÜϵͳµÄÎȹÌÐÔºÍÇå¾²ÐÔ¡£Ï£Íû±¾ÎĶÔʹÓÃLinux¾ÙÐÐϵͳ×ÊÔ´ÏÞÖƺͿØÖƵĶÁÕßÓÐËù×ÊÖú¡£

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https://www.man7.org/linux/man-pages/man7/cgroups.7.html

https://www.man7.org/linux/man-pages/man2/setrlimit.2.html

https://linux.die.net/man/1/ulimit

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