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ethtool -S<\/code>\u3002\u8be5\u547d\u4ee4\u4f1a\u8f93\u51fa\u9a71\u52a8\u5c42\u7ea7\u7684\u6240\u6709\u8ba1\u6570\u5668\u3002\u4f60\u9700\u8981\u91cd\u70b9\u5173\u6ce8\u4e24\u4e2a\u503c\uff1arx_dropped<\/code> \u548c tx_dropped<\/code>\u3002rx \u8868\u793a\u7f51\u5361\u5df2\u7ecf\u63a5\u6536\u5230\u4e86\u6570\u636e\u5305\uff0c\u4f46\u672a\u80fd\u6210\u529f\u4ea4\u7ed9\u5185\u6838\uff1btx \u8868\u793a\u7f51\u5361\u672a\u80fd\u6210\u529f\u53d1\u9001\u6570\u636e\u5305\u3002<\/p>\n

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\n\n\n\n<\/colgroup>\n\n\n\n\n\n\u73b0\u8c61<\/th>\n \u53ef\u80fd\u539f\u56e0<\/th>\n<\/tr>\n
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tx_dropped \u5728\u9ad8\u8d1f\u8f7d\u4e0b\u4e0a\u5347<\/td>\n \u961f\u5217\u8fc7\u5c0f\u6216\u73af\u5f62\u7f13\u51b2\u533a\u8017\u5c3d<\/td>\n<\/tr>\n
\u4e24\u4e2a\u8ba1\u6570\u5668\u90fd\u4fdd\u6301\u4e0d\u53d8\uff0c\u4f46\u4ecd\u5b58\u5728\u4e22\u5305<\/td>\n \u9700\u8981\u68c0\u67e5\u7f51\u5361\u4e4b\u5916\u7684\u95ee\u9898\uff0c\u4f8b\u5982\u7ebf\u7f06\u548c\u4ea4\u6362\u673a<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n\u8fd8\u6709\u4e00\u4e2a\u989d\u5916\u68c0\u67e5\u4f1a\u5f88\u6709\u5e2e\u52a9\u3002\u8fd0\u884c ethtool -S<\/code>\uff0c\u5e76 grep \u6bcf\u961f\u5217\u7684\u4e22\u5305\u5b57\u6bb5\u3002\u8bb8\u591a\u9a71\u52a8\u4f1a\u6309\u961f\u5217\u62a5\u544a\u4e22\u5305\u60c5\u51b5\u3002\u5982\u679c\u4e22\u5305\u96c6\u4e2d\u5728\u5c11\u6570\u51e0\u4e2a\u961f\u5217\u4e0a\uff0c\u5c31\u8bf4\u660e\u6d41\u91cf\u5206\u5e03\u5e76\u4e0d\u5747\u8861\u3002\u8fd9\u901a\u5e38\u6307\u5411 IRQ \u4eb2\u548c\u6027\u95ee\u9898\uff0c\u540e\u6587\u4f1a\u7ee7\u7eed\u5904\u7406\u3002<\/p>\n
\u5230\u8fd9\u91cc\uff0c\u4f60\u5df2\u7ecf\u638c\u63e1\u4e86\u8bc1\u636e\u3002\u5982\u679c\u4e22\u5305\u8ba1\u6570\u5668\u6301\u7eed\u4e0a\u5347\uff0c\u540c\u65f6\u961f\u5217\u6570\u91cf\u4e0e CPU \u5e03\u5c40\u4e0d\u5339\u914d\uff0c\u90a3\u4e48\u57fa\u672c\u53ef\u4ee5\u786e\u8ba4\u8bca\u65ad\u7ed3\u679c\u3002\u63a5\u4e0b\u6765\u8fdb\u5165\u4e0b\u4e00\u6b65\uff0c\u8ba1\u7b97\u5408\u9002\u7684\u961f\u5217\u6570\u91cf\u3002<\/p>\n
\u786e\u5b9a\u7f51\u5361\u8c03\u4f18\u7684\u6700\u4f73\u961f\u5217\u6570\u91cf<\/strong><\/h2>\n\u8ba9\u961f\u5217\u6570\u91cf\u5339\u914d CPU \u6838\u5fc3\u6570<\/h3>\n\u7f51\u5361\u8c03\u4f18\u7684\u7b2c\u4e00\u6761\u539f\u5219\u5f88\u7b80\u5355\uff1a\u961f\u5217\u6570\u91cf\u8981\u4e0e\u8d1f\u8d23\u5904\u7406\u7f51\u7edc\u4e2d\u65ad\u7684 CPU \u6838\u5fc3\u6570\u5339\u914d\u3002\u6bcf\u4e2a\u961f\u5217\u90fd\u9700\u8981\u81ea\u5df1\u7684\u4e2d\u65ad\u5411\u91cf\u3002\u5982\u679c\u4f60\u521b\u5efa\u7684\u961f\u5217\u591a\u4e8e\u6838\u5fc3\u6570\u91cf\uff0c\u5185\u6838\u5c31\u65e0\u6cd5\u53ca\u65f6\u5904\u7406\u6240\u6709\u961f\u5217\u3002\u6570\u636e\u5305\u4f1a\u6392\u961f\u7b49\u5f85\uff0c\u7f13\u51b2\u533a\u4f1a\u88ab\u586b\u6ee1\uff0c\u6700\u7ec8\u5bfc\u81f4\u4e22\u5305\u3002\u4e00\u4e2a\u8f83\u597d\u7684\u8d77\u70b9\uff0c\u662f\u6bcf\u4e2a\u7269\u7406\u6838\u5fc3\u5bf9\u5e94\u4e00\u4e2a\u961f\u5217\u3002\u5bf9\u4e8e\u591a\u6838\u670d\u52a1\u5668\uff0c\u5efa\u8bae\u5148\u6309\u201c\u6bcf\u4e2a\u7269\u7406\u6838\u5fc3\u4e00\u4e2a\u961f\u5217\u201d\u5f00\u59cb\u3002\u4f60\u53ef\u4ee5\u901a\u8fc7 ethtool -l<\/code> \u67e5\u770b\u5f53\u524d\u8bbe\u7f6e\u3002\u8fd9\u4e2a\u547d\u4ee4\u4f1a\u663e\u793a\u9884\u8bbe\u6700\u5927\u503c\u4ee5\u53ca\u5f53\u524d\u6fc0\u6d3b\u7684\u6570\u91cf\u3002<\/p>\n
\u4f60\u8fd8\u5fc5\u987b\u8003\u8651\u8d85\u7ebf\u7a0b\u3002\u903b\u8f91\u6838\u5fc3\u4f1a\u5171\u4eab\u7269\u7406\u6267\u884c\u5355\u5143\u3002\u6309\u903b\u8f91\u6838\u5fc3\u6570\u5206\u914d\u961f\u5217\uff0c\u5f80\u5f80\u4f1a\u5f15\u5165\u4e89\u7528\u3002\u56e0\u6b64\u5e94\u4f18\u5148\u4ece\u6bcf\u4e2a\u7269\u7406\u6838\u5fc3\u4e00\u4e2a\u961f\u5217\u5f00\u59cb\uff0c\u7136\u540e\u518d\u6d4b\u8bd5\u3002\u5982\u679c CPU \u5360\u7528\u7387\u4fdd\u6301\u8f83\u4f4e\uff0c\u4e14\u4e22\u5305\u6d88\u5931\uff0c\u90a3\u4e48\u4f60\u57fa\u672c\u5c31\u627e\u5230\u4e86\u4e00\u4e2a\u8f83\u597d\u7684\u5e73\u8861\u70b9\u3002\u5982\u679c\u4e22\u5305\u4ecd\u7136\u5b58\u5728\uff0c\u6709\u65f6\u5e76\u4e0d\u662f\u9700\u8981\u66f4\u591a\u961f\u5217\uff0c\u53cd\u800c\u53ef\u80fd\u9700\u8981\u66f4\u5c11\u3002\u51cf\u5c11\u961f\u5217\u6570\u91cf\u53ef\u4ee5\u964d\u4f4e\u4e2d\u65ad\u5411\u91cf\u6d88\u8017\uff0c\u5728\u9ad8\u8d1f\u8f7d\u7cfb\u7edf\u4e2d\u751a\u81f3\u80fd\u591f\u7f13\u89e3\u4e2d\u65ad\u4e22\u5305\u3002<\/p>\n
\u7ed3\u5408\u5de5\u4f5c\u8d1f\u8f7d\u4e0e\u961f\u5217\u5206\u5e03\u6765\u5224\u65ad<\/h3>\n\u4f60\u7684\u5de5\u4f5c\u8d1f\u8f7d\u7c7b\u578b\u4f1a\u5f71\u54cd\u7406\u60f3\u7684\u961f\u5217\u5206\u5e03\u65b9\u5f0f\u3002\u9ad8\u541e\u5410\u578b\u8d1f\u8f7d\uff0c\u4f8b\u5982\u5927\u89c4\u6a21\u4f20\u8f93\u3001AI \u8bad\u7ec3\u6216\u5b58\u50a8\u6d41\u91cf\uff0c\u901a\u5e38\u66f4\u9002\u5408\u66f4\u591a\u961f\u5217\u4ee5\u53ca\u66f4\u6fc0\u8fdb\u7684\u4e2d\u65ad\u5408\u5e76\u3002\u5408\u5e76\u4f1a\u8ba9\u6bcf\u6b21\u4e2d\u65ad\u5904\u7406\u66f4\u591a\u6570\u636e\u5305\uff0c\u4ece\u800c\u63d0\u5347\u541e\u5410\u3002\u76f8\u53cd\uff0c\u5ef6\u8fdf\u654f\u611f\u578b\u8d1f\u8f7d\uff0c\u4f8b\u5982\u4ea4\u6613\u7cfb\u7edf\u6216\u5b9e\u65f6\u4ea4\u4e92\u6d41\u91cf\uff0c\u5219\u9700\u8981\u76f8\u53cd\u7684\u7b56\u7565\u3002\u5173\u95ed\u81ea\u9002\u5e94\u5408\u5e76\uff0c\u5e76\u5c3d\u91cf\u51cf\u5c11\u6279\u5904\u7406\uff0c\u53ef\u4ee5\u964d\u4f4e\u4e2d\u65ad\u5ef6\u8fdf\u3002<\/p>\n
\u4e0b\u8868\u5c55\u793a\u4e86\u4e0d\u540c\u5de5\u4f5c\u8d1f\u8f7d\u7c7b\u578b\u4e0e\u5408\u5e76\u7b56\u7565\u53ca\u793a\u4f8b\u8bbe\u7f6e\u4e4b\u95f4\u7684\u5bf9\u5e94\u5173\u7cfb\u3002<\/p>\n
\n\n\n\n\n<\/colgroup>\n\n\n\n\n\u5de5\u4f5c\u8d1f\u8f7d\u7c7b\u578b<\/th>\n \u5408\u5e76\u7b56\u7565<\/th>\n \u793a\u4f8b ethtool \u8bbe\u7f6e<\/th>\n<\/tr>\n
\u9ad8\u541e\u5410\u578b<\/td>\n \u542f\u7528\u81ea\u9002\u5e94\u5408\u5e76\uff0c\u6216\u8bbe\u7f6e\u8f83\u9ad8\u7684\u624b\u52a8\u503c<\/td>\n ethtool -C ens1f0 adaptive-rx on adaptive-tx on<\/code><\/td>\n<\/tr>\n
\u5ef6\u8fdf\u654f\u611f\u578b<\/td>\n \u5173\u95ed\u81ea\u9002\u5e94\u5408\u5e76\uff0c\u5e76\u5c3d\u91cf\u51cf\u5c11\u6279\u5904\u7406<\/td>\n ethtool -C ens1f0 adaptive-rx off adaptive-tx off<\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n\u8f83\u5927\u7684\u961f\u5217\u6709\u52a9\u4e8e\u7e41\u5fd9\u7cfb\u7edf\u7ef4\u6301\u9ad8\u541e\u5410\uff0c\u4f46\u4e5f\u4f1a\u5e26\u6765\u66f4\u9ad8\u5ef6\u8fdf\u3002\u82e5\u961f\u5217\u5206\u5e03\u504f\u5411\u541e\u5410\u4f18\u5316\uff0c\u4ea4\u4e92\u7c7b\u6570\u636e\u5305\u53ef\u80fd\u4f1a\u6392\u5728\u5927\u6d41\u91cf\u6570\u636e\u540e\u9762\u7b49\u5f85\u5904\u7406\u3002\u5982\u679c\u4f60\u66f4\u60f3\u4f18\u5316\u5ef6\u8fdf\u800c\u4e0d\u662f\u541e\u5410\uff0c\u53ef\u4ee5\u5173\u95ed TSO\u3001GSO\u3001UFO \u548c GRO\u3002\u9664\u975e\u7cfb\u7edf\u6b63\u5728\u5904\u7406\u6781\u9ad8\u7684\u6570\u636e\u901f\u7387\uff0c\u5426\u5219\u4f60\u901a\u5e38\u4e0d\u4f1a\u770b\u5230\u660e\u663e\u7684 CPU \u5f71\u54cd\u6216\u541e\u5410\u4e0b\u964d\u3002\u82e5\u4f60\u5e0c\u671b\u5bf9\u6392\u961f\u5b57\u8282\u6570\u8bbe\u5b9a\u4e00\u4e2a\u786c\u4e0a\u9650\uff0c\u53ef\u4ee5\u5c06\u65b0\u503c\u5199\u5165 limit_max \u6587\u4ef6\u3002<\/p>\n
\u8c03\u6574\u961f\u5217\u6570\u91cf\u5e76\u9a8c\u8bc1\u4fee\u590d\u6548\u679c<\/strong><\/h2>\n\u4f7f\u7528 ethtool -L \u4fee\u6539\u961f\u5217\u6570\u91cf<\/h3>\n\u4f60\u5df2\u7ecf\u786e\u5b9a\u4e86\u76ee\u6807\u503c\uff0c\u73b0\u5728\u53ef\u4ee5\u5f00\u59cb\u5e94\u7528\u3002ethtool \u5de5\u5177\u80fd\u591f\u5728\u65e0\u9700\u91cd\u542f\u7684\u60c5\u51b5\u4e0b\u4fee\u6539\u6d3b\u52a8\u961f\u5217\u6570\u91cf\u3002\u4f7f\u7528 -L<\/code> \u53c2\u6570\u5e76\u914d\u5408 combined \u9009\u9879\uff0c\u5373\u53ef\u540c\u65f6\u8bbe\u7f6e\u63a5\u6536\u548c\u53d1\u9001\u961f\u5217\u3002<\/p>\n
\u4f7f\u7528 ethtool -L<\/code> \u5c06\u7f51\u5361\u7684\u53d1\u9001\u4e0e\u63a5\u6536\u7ec4\u5408\u961f\u5217\u8bbe\u7f6e\u4e3a 8<\/p>\n
$ sudo ethtool -L eth0 combined 8<\/code><\/pre>\n<\/blockquote>\n\u4f8b\u5982\uff0c\u5bf9\u4e8e\u4e00\u53f0 16 \u6838\u670d\u52a1\u5668\uff0c\u4f60\u53ef\u4ee5\u8fd0\u884c ethtool -L ens1f0 combined 16<\/code> \u6765\u8bbe\u7f6e\u6700\u5927\u503c\u3002\u4fee\u6539\u540e\u4e00\u5b9a\u8981\u7528 ethtool -l<\/code> \u518d\u6b21\u786e\u8ba4\u3002\u8fd9\u4e2a\u547d\u4ee4\u4f1a\u663e\u793a\u5f53\u524d\u6d3b\u52a8\u961f\u5217\u6570\u3002\u5982\u679c\u7ed3\u679c\u4e0e\u4f60\u7684\u76ee\u6807\u4e00\u81f4\uff0c\u8bf4\u660e\u4fee\u6539\u5df2\u751f\u6548\u3002\u5982\u679c\u9a71\u52a8\u62d2\u7edd\u8be5\u8bf7\u6c42\uff0c\u5c31\u9700\u8981\u68c0\u67e5\u9884\u8bbe\u6700\u5927\u503c\u3002\u6709\u4e9b\u9002\u914d\u5668\u4f1a\u5c06 combined \u7684\u6570\u91cf\u9650\u5236\u5728\u56fa\u5b9a\u8303\u56f4\u5185\u3002<\/p>\n
\u4e00\u6b21\u53ea\u4fee\u6539\u8fd9\u4e00\u4e2a\u53d8\u91cf\u3002\u6b64\u65f6\u5148\u4e0d\u8981\u53bb\u8c03\u6574\u73af\u5f62\u7f13\u51b2\u533a\u6216\u4e2d\u65ad\u5408\u5e76\u53c2\u6570\u3002\u5355\u53d8\u91cf\u53d8\u66f4\u80fd\u8ba9\u6d4b\u8bd5\u7ed3\u679c\u66f4\u52a0\u6e05\u6670\u3002<\/p>\n
\u76d1\u63a7\u5e76\u91cd\u65b0\u6d4b\u8bd5\u4e22\u5305\u60c5\u51b5<\/h3>\n\u4fee\u6539\u5b8c\u6210\u540e\uff0c\u7acb\u5373\u91cd\u65b0\u68c0\u67e5\u4e22\u5305\u8ba1\u6570\u5668\u3002\u8fd0\u884c ethtool -S<\/code>\uff0c\u89c2\u5bdf rx_dropped<\/code> \u6216 tx_dropped<\/code> \u662f\u5426\u7ee7\u7eed\u4e0a\u5347\u3002\u82e5\u8ba1\u6570\u5668\u4fdd\u6301\u4e0d\u53d8\uff0c\u5219\u8bf4\u660e\u4fee\u590d\u6709\u6548\u3002\u4f60\u4e5f\u53ef\u4ee5\u901a\u8fc7 \/proc\/net\/softnet_stat<\/code> \u67e5\u770b\u5185\u6838\u5c42\u9762\u7684\u4e22\u5305\u60c5\u51b5\u3002\u8be5\u6587\u4ef6\u4e2d\u7684\u7b2c 2 \u5217\u8868\u793a\u4e22\u5f03\u7684\u6570\u636e\u5305\u6570\u91cf\uff0c\u7b2c 3 \u5217\u8868\u793a time_squeeze\uff0c\u610f\u5473\u7740 CPU \u8fc7\u4e8e\u7e41\u5fd9\uff0c\u65e0\u6cd5\u53ca\u65f6\u5904\u7406\u6d41\u91cf\u3002\u5b9e\u65f6\u89c2\u5bdf\u8fd9\u4e9b\u8ba1\u6570\u5668\uff0c\u6709\u52a9\u4e8e\u6355\u6349\u65b0\u7684\u4e22\u5305\u95ee\u9898\u3002<\/p>\n
\u63a5\u4e0b\u6765\uff0c\u7528 iperf3 \u8fdb\u884c\u541e\u5410\u6d4b\u8bd5\u3002\u5148\u542f\u52a8\u670d\u52a1\u7aef\uff0c\u518d\u8fd0\u884c\u5355\u6d41\u5ba2\u6237\u7aef\u6d4b\u8bd5\uff0c\u7136\u540e\u518d\u7528\u5e76\u884c\u6d41\u538b\u6ee1\u94fe\u8def\u3002\u5c06\u7ed3\u679c\u4e0e\u6700\u521d\u7684\u57fa\u51c6\u8fdb\u884c\u6bd4\u8f83\u3002\u5982\u679c\u541e\u5410\u4fdd\u6301\u7a33\u5b9a\u4e14\u4e22\u5305\u6d88\u5931\uff0c\u8bf4\u660e\u8fd9\u6b21\u8c03\u6574\u6210\u529f\u4e86\u3002\u670d\u52a1\u5668\u7f51\u5361\u961f\u5217\u6570\u91cf\u914d\u7f6e\u4e0d\u5f53\u5bfc\u81f4\u7684\u4e22\u5305\u95ee\u9898\uff0c\u901a\u5e38\u4f1a\u5728\u8fd9\u91cc\u4f53\u73b0\u51fa\u660e\u663e\u6539\u5584\u3002<\/p>\n
\u5ef6\u8fdf\u540c\u6837\u91cd\u8981\u3002\u4f60\u53ef\u4ee5\u5148\u7528 ping \u505a\u4e00\u4e2a\u57fa\u7840\u68c0\u67e5\u3002\u5982\u679c\u60f3\u770b\u66f4\u8be6\u7ec6\u7684\u65f6\u5ef6\u5206\u5e03\uff0c\u53ef\u4ee5\u8fd0\u884c sockperf ping-pong\u3002\u8fd9\u4e2a\u6d4b\u8bd5\u80fd\u591f\u53d1\u73b0 ping \u53ef\u80fd\u9057\u6f0f\u7684\u5ef6\u8fdf\u6296\u52a8\u95ee\u9898\u3002<\/p>\n
\u6700\u540e\uff0c\u8fd8\u8981\u7559\u610f\u526f\u4f5c\u7528\u3002\u76d1\u63a7 \/proc\/interrupts<\/code>\uff0c\u89c2\u5bdf\u4e2d\u65ad\u901f\u7387\u5982\u4f55\u53d8\u5316\u3002\u8fd9\u4e2a\u6587\u4ef6\u80fd\u5e2e\u52a9\u4f60\u9a8c\u8bc1\u6bcf\u4e2a\u63a5\u6536\u961f\u5217\u662f\u5426\u6620\u5c04\u5230\u4e86\u5408\u9002\u7684 CPU\u3002\u4e0d\u8fc7\uff0c\u4ec5\u9760\u8fd9\u4e2a\u6307\u6807\u5e76\u4e0d\u80fd\u53ef\u9760\u53cd\u6620\u5b9e\u9645\u6570\u636e\u91cf\uff0c\u56e0\u4e3a\u5f88\u591a\u9a71\u52a8\u5728\u4e0e NAPI \u5b50\u7cfb\u7edf\u534f\u540c\u65f6\u4f1a\u5173\u95ed\u7f51\u5361\u4e2d\u65ad\uff0c\u800c\u4e2d\u65ad\u5408\u5e76\u4e5f\u4f1a\u5f71\u54cd\u8fd9\u4e9b\u6570\u5b57\u3002\u4e3a\u4e86\u83b7\u5f97\u66f4\u5b8c\u6574\u7684\u89c6\u56fe\uff0c\u4e5f\u8bf7\u540c\u65f6\u68c0\u67e5 \/proc\/softirqs<\/code>\u3002\u5982\u679c\u4f60\u53d1\u73b0 CPU \u5360\u7528\u5347\u9ad8\uff0c\u6216\u8005\u51fa\u73b0\u65b0\u7684\u5ef6\u8fdf\u5c16\u5cf0\uff0c\u5c31\u610f\u5473\u7740\u9700\u8981\u91cd\u65b0\u8bc4\u4f30\u961f\u5217\u6570\u91cf\u3002\u6709\u65f6\u51cf\u5c11\u961f\u5217\u53ef\u4ee5\u964d\u4f4e\u4e2d\u65ad\u5411\u91cf\u6d88\u8017\uff0c\u7f13\u89e3\u4e2d\u65ad\u538b\u529b\u3002\u5982\u679c\u5728\u5b8c\u6210\u8fd9\u4e9b\u68c0\u67e5\u540e\u4ecd\u6709\u4e22\u5305\uff0c\u5c31\u8fdb\u5165\u4e0b\u4e00\u8282\u505a\u66f4\u6df1\u5165\u7684\u8c03\u4f18\u3002<\/p>\n
\u8c03\u4f18\u64cd\u4f5c\u7cfb\u7edf\u7f51\u7edc\u6808\u4e0e\u7f51\u5361\u8bbe\u7f6e<\/strong><\/h2>\n\u5982\u679c\u5728\u8c03\u6574\u961f\u5217\u6570\u91cf\u540e\u4e22\u5305\u4f9d\u7136\u5b58\u5728\uff0c\u5c31\u9700\u8981\u8fdb\u4e00\u6b65\u6df1\u5165\u8c03\u4f18\u3002\u901a\u5e38\u8fd8\u5269\u4e24\u4e2a\u95ee\u9898\uff1a\u73af\u5f62\u7f13\u51b2\u533a\u8fc7\u5c0f\uff0c\u4ee5\u53ca\u4e2d\u65ad\u5904\u7406\u4e0d\u5747\u8861\u3002\u628a\u8fd9\u4e24\u70b9\u4fee\u6b63\u540e\uff0c\u5f80\u5f80\u5c31\u80fd\u89e3\u51b3\u95ee\u9898\u3002<\/p>\n
\u589e\u5927\u73af\u5f62\u7f13\u51b2\u533a\u4ee5\u51cf\u5c11\u4e22\u5305<\/h3>\n\u73af\u5f62\u7f13\u51b2\u533a\u662f\u5728\u7f51\u7edc\u63a5\u53e3\u4e0e\u5185\u6838\u4e4b\u95f4\u8d77\u4e34\u65f6\u5b58\u50a8\u4f5c\u7528\u7684\u533a\u57df\u3002\u5f53\u7a81\u53d1\u6d41\u91cf\u8d85\u8fc7\u7f13\u51b2\u5bb9\u91cf\u65f6\uff0c\u7f51\u5361\u5c31\u4f1a\u4e22\u5f03\u6570\u636e\u5305\u3002\u589e\u5927\u7f13\u51b2\u533a\u5927\u5c0f\uff0c\u53ef\u4ee5\u964d\u4f4e\u8fd9\u79cd\u98ce\u9669\u3002<\/p>\n
\u5148\u68c0\u67e5\u5f53\u524d\u7684 nic ring buffer \u8bbe\u7f6e\u3002\u4f7f\u7528 ethtool -g<\/code> \u67e5\u770b\u6570\u503c\u3002\u8be5\u547d\u4ee4\u4f1a\u663e\u793a\u6bcf\u4e2a\u961f\u5217\u5bf9\u5e94\u7684 rx \u548c tx \u73af\u5f62\u7f13\u51b2\u533a\u5927\u5c0f\u3002\u82e5\u5f53\u524d\u503c\u8f83\u5c0f\uff0c\u5c31\u8bf4\u660e\u8fd8\u6709\u6269\u5c55\u7a7a\u95f4\u3002<\/p>\n
\u4f7f\u7528 -G<\/code> \u53c2\u6570\u589e\u5927\u73af\u5f62\u7f13\u51b2\u533a\u3002\u4f8b\u5982\u8fd0\u884c sudo ethtool -G eth0 rx 4096 tx 4096<\/code>\u3002\u5c3d\u53ef\u80fd\u628a\u63a5\u6536\u4e0e\u53d1\u9001\u7f13\u51b2\u533a\u90fd\u8bbe\u7f6e\u5230\u8f83\u5927\u7684\u503c\uff0c\u6700\u5927\u53ef\u5230 4096\u3002\u518d\u7528 ethtool -g<\/code> \u786e\u8ba4\u65b0\u7684 ring buffer \u5927\u5c0f\u3002\u66f4\u5927\u7684 ring buffer \u80fd\u5728\u7a81\u53d1\u6d41\u91cf\u4e0b\u4e3a\u7cfb\u7edf\u4e89\u53d6\u66f4\u591a\u5904\u7406\u65f6\u95f4\uff0c\u4ece\u800c\u5728\u4e0d\u6539\u53d8\u961f\u5217\u6570\u7684\u524d\u63d0\u4e0b\u51cf\u5c11\u4e22\u5305\u3002\u4e0d\u8fc7\uff0c\u66f4\u5927\u7684\u7f13\u51b2\u533a\u4e5f\u4f1a\u589e\u52a0\u5ef6\u8fdf\u3002\u5bf9\u4e8e\u5ef6\u8fdf\u654f\u611f\u578b\u8d1f\u8f7d\uff0c\u5efa\u8bae\u6d4b\u8bd5\u8f83\u4e3a\u9002\u4e2d\u7684\u6570\u503c\u3002<\/p>\n
\u914d\u7f6e IRQ \u4eb2\u548c\u6027\u4ee5\u5b9e\u73b0\u8d1f\u8f7d\u5747\u8861<\/h3>\n\u5373\u4f7f\u961f\u5217\u6570\u91cf\u6b63\u786e\u3001nic ring buffer size \u4e5f\u8bbe\u7f6e\u5f97\u5f53\uff0c\u5982\u679c\u4e2d\u65ad\u5206\u5e03\u4e0d\u5747\u8861\uff0c\u4ecd\u7136\u53ef\u80fd\u9020\u6210\u4e22\u5305\u3002\u6bcf\u4e2a\u63a5\u6536\u961f\u5217\u90fd\u4f1a\u4ea7\u751f\u4e00\u4e2a\u4e2d\u65ad\u8bf7\u6c42\u3002\u5f53\u591a\u4e2a IRQ \u96c6\u4e2d\u843d\u5728\u540c\u4e00\u4e2a\u6838\u5fc3\u4e0a\u65f6\uff0c\u8be5\u6838\u5fc3\u4f1a\u8fc7\u8f7d\uff0c\u800c\u5176\u4ed6\u6838\u5fc3\u5374\u5904\u4e8e\u7a7a\u95f2\u72b6\u6001\u3002\u914d\u7f6e irq affinity \u7684\u76ee\u7684\uff0c\u5c31\u662f\u628a\u8d1f\u8f7d\u5747\u5300\u5206\u6563\u5f00\u6765\u3002<\/p>\n
\u5148\u68c0\u67e5\u4e2d\u65ad\u5206\u5e03\u3002\u8fd0\u884c cat \/proc\/interrupts | grep ethX<\/code>\uff0c\u67e5\u770b\u54ea\u4e9b\u6838\u5fc3\u6b63\u5728\u5904\u7406\u7f51\u7edc\u4e2d\u65ad\u3002\u518d\u7ed3\u5408 top<\/code> \u89c2\u5bdf CPU \u4f7f\u7528\u60c5\u51b5\u3002\u82e5\u53d1\u73b0\u5206\u5e03\u660e\u663e\u4e0d\u5747\uff0c\u5c31\u8bf4\u660e\u95ee\u9898\u5b58\u5728\u3002<\/p>\n
\u4f60\u53ef\u4ee5\u901a\u8fc7 irqbalance --debug<\/code> \u8c03\u8bd5 IRQ \u5206\u5e03\u3002\u5982\u679c\u81ea\u52a8\u5747\u8861\u672a\u542f\u7528\uff0c\u5c31\u9700\u8981\u624b\u52a8\u4e3a\u6bcf\u4e2a\u961f\u5217\u8bbe\u7f6e CPU \u6838\u5fc3\u4eb2\u548c\u6027\u3002\u5c06\u6838\u5fc3\u63a9\u7801\u5199\u5165 \/sys\/class\/net\/ethX\/queues\/rx-0\/rps_cpus<\/code>\u3002\u4f8b\u5982\uff0c\u8981\u628a\u961f\u5217 0 \u5206\u914d\u7ed9 CPU \u6838\u5fc3 0\uff0c\u53ef\u4ee5\u5411\u8be5\u6587\u4ef6\u5199\u5165\u6570\u503c 1<\/code>\u3002\u4f60\u53ef\u4ee5\u5148\u901a\u8fc7 lscpu | grep '^CPU(s):'<\/code> \u5217\u51fa\u53ef\u7528\u6838\u5fc3\uff0c\u4ee5\u786e\u5b9a\u6b63\u786e\u7684\u63a9\u7801\u3002<\/p>\n
\u5747\u8861\u7684 irq affinity \u80fd\u964d\u4f4e\u5355\u6838\u5fc3\u538b\u529b\uff0c\u9632\u6b62\u4e22\u5305\u4e0d\u65ad\u79ef\u7d2f\u3002\u914d\u5408\u5408\u9002\u7684 nic ring buffers \u540e\uff0c\u4f60\u7684 nic settings \u5c06\u80fd\u591f\u66f4\u9ad8\u6548\u5730\u5904\u7406\u6d41\u91cf\u3002\u5982\u679c\u95ee\u9898\u4ecd\u672a\u89e3\u51b3\uff0c\u53ef\u4ee5\u8fdb\u4e00\u6b65\u51cf\u5c11\u961f\u5217\u6570\u91cf\u3002\u66f4\u5c11\u7684\u961f\u5217\u53ef\u4ee5\u964d\u4f4e\u4e2d\u65ad\u5411\u91cf\u6d88\u8017\uff0c\u4ece\u800c\u51cf\u8f7b IRQ \u4e22\u5305\u3002\u4f60\u8fd8\u53ef\u4ee5\u5728\u7f51\u7edc\u63a5\u53e3\u4e0a\u914d\u7f6e QoS\uff0c\u4f18\u5148\u4fdd\u969c\u5173\u952e\u6d41\u91cf\u3002<\/p>\n
\u6b64\u5916\uff0c\u8fd8\u53ef\u4ee5\u5728\u64cd\u4f5c\u7cfb\u7edf\u5c42\u9762\u8c03\u6574 Linux \u5185\u6838\u7684\u63a5\u6536\u4e0e\u53d1\u9001\u7f13\u51b2\u533a\u3002\u4f7f\u7528 sysctl \u4fee\u6539 net.core.rmem_max<\/code> \u548c net.core.wmem_max<\/code>\u3002\u628a\u5b83\u4eec\u8bbe\u7f6e\u5f97\u66f4\u9ad8\uff0c\u53ef\u4ee5\u66f4\u597d\u5730\u5bb9\u7eb3\u7a81\u53d1\u6d41\u91cf\uff0c\u4ece\u800c\u627f\u63a5\u90a3\u4e9b\u5df2\u7ecf\u901a\u8fc7\u7f51\u5361\u3001\u4f46\u8d85\u8fc7\u5185\u6838\u5904\u7406\u80fd\u529b\u7684\u6570\u636e\u5305\u3002<\/p>\n
\n<\/div>\n<\/div>\n\u73b0\u5728\u4f60\u5df2\u7ecf\u62e5\u6709\u4e00\u5957\u56db\u6b65\u5904\u7406\u6d41\u7a0b\u3002\u7b2c\u4e00\u6b65\uff0c\u7528\u4e22\u5305\u8ba1\u6570\u5668\u8bca\u65ad\u95ee\u9898\u3002\u7b2c\u4e8c\u6b65\uff0c\u6839\u636e\u786c\u4ef6\u9009\u62e9\u6700\u4f73\u961f\u5217\u6570\u91cf\u3002\u7b2c\u4e09\u6b65\uff0c\u4f7f\u7528 ethtool \u5e94\u7528\u4fee\u6539\u3002\u7b2c\u56db\u6b65\uff0c\u5728\u5fc5\u8981\u65f6\u7ee7\u7eed\u8c03\u4f18\u64cd\u4f5c\u7cfb\u7edf\u7f51\u7edc\u6808\u3002\u6bcf\u6b21\u53ea\u6539\u52a8\u4e00\u4e2a\u53d8\u91cf\uff0c\u9a8c\u8bc1\u6bcf\u4e00\u6b21\u7ed3\u679c\uff0c\u5e76\u8bb0\u5f55\u6240\u6709\u8bbe\u7f6e\u3002\u670d\u52a1\u5668\u7f51\u5361\u961f\u5217\u6570\u91cf\u914d\u7f6e\u4e0d\u5f53\u5bfc\u81f4\u4e22\u5305\uff0c\u662f\u4e00\u4e2a\u5f88\u5e38\u89c1\u7684\u95ee\u9898\uff0c\u4f46\u5b83\u5b8c\u5168\u53ef\u4ee5\u88ab\u4fee\u590d\u3002\u4e0d\u59a8\u4eca\u5929\u5c31\u82b1\u51e0\u5206\u949f\u68c0\u67e5\u4e00\u4e0b\u4f60\u7684\u670d\u52a1\u5668\u961f\u5217\u6570\u91cf\uff0c\u8fd9\u4e5f\u8bb8\u80fd\u5e2e\u4f60\u7701\u4e0b\u6570\u5c0f\u65f6\u7684\u7f51\u7edc\u6392\u969c\u65f6\u95f4\u3002<\/p>\n
\u5e38\u89c1\u95ee\u9898<\/strong><\/h2>\n\u6211\u5982\u4f55\u786e\u8ba4\u662f\u961f\u5217\u6570\u91cf\u5bfc\u81f4\u4e86\u4e22\u5305\uff1f<\/h3>\n\u8fd0\u884c ethtool -S<\/code>\uff0c\u89c2\u5bdf rx_dropped<\/code> \u548c tx_dropped<\/code>\u3002\u5982\u679c\u8fd9\u4e9b\u8ba1\u6570\u5668\u6301\u7eed\u4e0a\u5347\uff0c\u5e76\u4e14\u961f\u5217\u6570\u91cf\u8d85\u8fc7 CPU \u6838\u5fc3\u6570\uff0c\u90a3\u4e48\u8fd9\u79cd\u4e0d\u5339\u914d\u5f88\u53ef\u80fd\u5c31\u662f\u6839\u672c\u539f\u56e0\u3002<\/p>\n
\u6211\u7684\u670d\u52a1\u5668\u6700\u4f73\u961f\u5217\u6570\u91cf\u662f\u591a\u5c11\uff1f<\/h3>\n\u5efa\u8bae\u4ece\u6bcf\u4e2a\u7269\u7406\u6838\u5fc3\u4e00\u4e2a\u961f\u5217\u5f00\u59cb\u3002\u4f7f\u7528 ethtool -l<\/code> \u67e5\u770b\u5f53\u524d\u6570\u91cf\uff0c\u518d\u6839\u636e\u5de5\u4f5c\u8d1f\u8f7d\u8fdb\u884c\u8c03\u6574\u3002\u66f4\u591a\u961f\u5217\u6709\u5229\u4e8e\u541e\u5410\uff0c\u66f4\u5c11\u961f\u5217\u5219\u6709\u52a9\u4e8e\u964d\u4f4e\u4e2d\u65ad\u538b\u529b\u3002<\/p>\n
\u4fee\u6539\u961f\u5217\u6570\u91cf\u9700\u8981\u91cd\u542f\u5417\uff1f<\/h3>\n\u4e0d\u9700\u8981\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528 ethtool -L<\/code> \u7acb\u5373\u4fee\u6539\u6d3b\u52a8\u961f\u5217\u6570\u91cf\uff0c\u65b0\u503c\u4f1a\u5373\u65f6\u751f\u6548\u3002\u968f\u540e\u4f7f\u7528 ethtool -l<\/code> \u8fdb\u884c\u786e\u8ba4\u5373\u53ef\u3002<\/p>\n
\u8c03\u6574\u961f\u5217\u4f1a\u5f71\u54cd\u5e94\u7528\u6027\u80fd\u5417\uff1f<\/h3>\n\u4f1a\u3002\u66f4\u591a\u961f\u5217\u901a\u5e38\u80fd\u63d0\u5347\u5927\u6d41\u91cf\u4f20\u8f93\u7684\u541e\u5410\u8868\u73b0\uff1b\u800c\u5bf9\u4e8e\u5ef6\u8fdf\u654f\u611f\u578b\u5e94\u7528\uff0c\u66f4\u5c11\u7684\u961f\u5217\u5e76\u5173\u95ed\u5408\u5e76\u529f\u80fd\uff0c\u5f80\u5f80\u6548\u679c\u66f4\u597d\u3002\u5efa\u8bae\u6839\u636e\u4f60\u7684\u5b9e\u9645\u5de5\u4f5c\u8d1f\u8f7d\u8fdb\u884c\u6d4b\u8bd5\u3002<\/p>\n
\u5982\u679c\u8c03\u4f18\u961f\u5217\u540e\u4ecd\u7136\u4e22\u5305\uff0c\u6211\u8be5\u600e\u4e48\u529e\uff1f<\/h3>\n\u53ef\u4ee5\u4f7f\u7528 ethtool -G<\/code> \u589e\u5927\u73af\u5f62\u7f13\u51b2\u533a\u5927\u5c0f\uff1b\u914d\u7f6e IRQ \u4eb2\u548c\u6027\uff0c\u8ba9\u4e2d\u65ad\u5728\u5404\u6838\u5fc3\u4e4b\u95f4\u5747\u8861\u5206\u5e03\uff1b\u5982\u679c\u4e2d\u65ad\u5411\u91cf\u6d88\u8017\u4ecd\u7136\u8fc7\u9ad8\uff0c\u5219\u7ee7\u7eed\u51cf\u5c11\u961f\u5217\u6570\u91cf\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
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