{"id":4666,"date":"2015-01-22T15:11:30","date_gmt":"2015-01-22T13:11:30","guid":{"rendered":"http:\/\/skeletor.org.ua\/?p=4666"},"modified":"2015-01-22T15:11:30","modified_gmt":"2015-01-22T13:11:30","slug":"dtrace-%d0%bf%d1%80%d0%be%d1%81%d0%bc%d0%be%d1%82%d1%80-%d0%be%d1%82%d0%ba%d1%80%d1%8b%d1%82%d1%8b%d1%85-%d1%84%d0%b0%d0%b9%d0%bb%d0%be%d0%b2","status":"publish","type":"post","link":"https:\/\/skeletor.org.ua\/?p=4666","title":{"rendered":"[dtrace] \u041f\u0440\u043e\u0441\u043c\u043e\u0442\u0440 \u043e\u0442\u043a\u0440\u044b\u0442\u044b\u0445 \u0444\u0430\u0439\u043b\u043e\u0432"},"content":{"rendered":"

\u0412 \u043a\u043e\u043c\u043f\u043b\u0435\u043a\u0442\u0435 dtrace tool kit<\/strong> \u0435\u0441\u0442\u044c \u0441\u043a\u0440\u0438\u043f\u0442 opensnoop<\/strong>, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u043f\u0440\u043e\u0441\u043c\u0430\u0442\u0440\u0438\u0432\u0430\u0442\u044c \u043e\u0442\u043a\u0440\u044b\u0442\u044b\u0435 \u0444\u0430\u0439\u043b\u044b \u0432 \u0440\u0435\u0436\u0438\u043c\u0435 \u0440\u0435\u0430\u043b\u044c\u043d\u043e\u0433\u043e \u0432\u0440\u0435\u043c\u0435\u043d\u0438.<\/p>\n

\u041f\u0440\u0438\u043c\u0435\u0440 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u044f.<\/span><\/em><\/p>\n

.\/opensnoop.d -x -n php\r\n  UID    PID COMM          FD PATH\r\n  620   8483 php           -1 \/var\/ld\/ld.config\r\n  620   8483 php           -1 \/bin\/\/php-cli.ini\r\n  620   8483 php           -1 \/soft\/sun_free\/php\/php-cli.ini\r\n  620   8483 php           -1 \/bin\/\/php.ini\r\n...\r\n<\/pre>\n
<\/p>\n
FD – \u0444\u0430\u0439\u043b \u0434\u0435\u0441\u043a\u0440\u0438\u043f\u0442\u043e\u0440 (-1 \u0437\u043d\u0430\u0447\u0438\u0442 \u043e\u0448\u0438\u0431\u043a\u0430, \u0447\u0442\u043e \u0444\u0430\u0439\u043b \u043d\u0435 \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u0443\u0435\u0442)<\/p>\n
\u0425\u043e\u0447\u0443 \u0442\u0430\u043a \u0436\u0435 \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u0438\u0442\u044c \u043f\u043e\u043b\u0435\u0437\u043d\u044b\u0435 \u0441\u043a\u0440\u0438\u043f\u0442\u044b \u043d\u0430\u043f\u0438\u0441\u0430\u043d\u043d\u044b\u0435 Julien Gabel (\u0430\u0432\u0442\u043e\u0440 \u0440\u0435\u0441\u0443\u0440\u0441\u0430 http:\/\/blog.thilelli.net\/)<\/p>\n
– readfile.d<\/span> <\/strong>(\u043f\u043e\u043a\u0430\u0437\u044b\u0432\u0430\u0435\u0442 \u043f\u043e\u043b\u043d\u044b\u0439 \u043f\u0443\u0442\u044c \u043a \u043e\u0442\u043a\u0440\u044b\u0442\u044b\u043c \u0444\u0430\u0439\u043b\u0430\u043c (read) \u0437\u0430\u0434\u0430\u043d\u043d\u043e\u0433\u043e \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u044f \u0438 \u043a\u043e\u043b\u0438\u0447\u0435\u0441\u0442\u0432\u043e \u043e\u0431\u0440\u0430\u0449\u0435\u043d\u0438\u0439)<\/p>\n
\u041f\u0440\u0438\u043c\u0435\u0440 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u044f.<\/span><\/em><\/p>\n
# readfile.d php 5s<\/code><\/p>\n
\u0418\u0441\u0445\u043e\u0434\u043d\u0438\u043a.<\/span><\/em><\/p>\n
#!\/usr\/sbin\/dtrace -s\r\n#pragma D option quiet\r\n\r\ndtrace:::BEGIN\r\n{\r\n  printf(\"%s %s %s\", \"Sampling for\", $$2, \"... Please wait.\");\r\n}\r\n\r\nsyscall::*read:entry\r\n\/execname == $$1\/\r\n{\r\n  self->thr = 1;\r\n  self->fd = arg0;\r\n}\r\n\r\nsyscall::*read:return\r\n\/self->thr\/\r\n{\r\n  \/*\r\n   * About resolving the file name (self->vpath):\r\n   * Shamefully stolen from the `rwsnoop' dtrace script (found\r\n   * in the DTraceToolkit), by Brendan Gregg.  Please refer to\r\n   * http:\/\/www.brendangregg.com\/dtrace.html for more information\r\n   * on DTrace tools and good examples.\r\n   *\/\r\n  this->filistp = curthread->t_procp->p_user.u_finfo.fi_list;\r\n  this->ufentryp = (uf_entry_t *)((uint64_t)this->filistp +\r\n   (uint64_t)self->fd * (uint64_t)sizeof(uf_entry_t));\r\n  this->filep = this->ufentryp->uf_file;\r\n  this->vnodep = this->filep != 0 ? this->filep->f_vnode : 0;\r\n  self->vpath = this->vnodep ? (this->vnodep->v_path != 0 ?\r\n   cleanpath(this->vnodep->v_path) : \"\") : \"\";\r\n\r\n  @rnum[self->vpath] = count();\r\n  self->thr = 0;\r\n  self->fd = 0;\r\n  self->vpath = 0;\r\n}\r\n\r\nprofile:::tick-$2\r\n{\r\n  printf(\"%-80s %7s\", \"FILE NAME\", \"COUNT\");\r\n  printa(\"%-80s %@7d\", @rnum);\r\n  exit(0);\r\n}<\/pre>\n
– readid.d<\/span><\/strong> (\u043f\u043e\u043a\u0430\u0437\u044b\u0432\u0430\u0435\u0442 pid, \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0435, \u043a\u043e\u043b\u0438\u0447\u0435\u0441\u0442\u0432\u043e \u043e\u0431\u0440\u0430\u0449\u0435\u043d\u0438\u0439 read)<\/p>\n
\u041f\u0440\u0438\u043c\u0435\u0440 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u044f.<\/span><\/em><\/p>\n
# .\/readid.d php 5s<\/code><\/p>\n
\u0418\u0441\u0445\u043e\u0434\u043d\u0438\u043a.<\/span><\/em><\/p>\n
#!\/usr\/sbin\/dtrace -s\r\n#pragma D option quiet\r\n\r\ndtrace:::BEGIN\r\n{\r\n  printf(\"%s %s %s\", \"Sampling for\", $$2, \"... Please wait.\");\r\n}\r\n\r\nsyscall::*read:entry\r\n\/execname == $$1\/\r\n{\r\n  self->thr = 1;\r\n}\r\n\r\nsyscall::*read:return\r\n\/self->thr\/\r\n{\r\n  @ridnum[execname,pid] = count();\r\n  self->thr = 0;\r\n}\r\n\r\nprofile:::tick-$2\r\n{\r\n  printf(\"%-15s %10s %10s\", \"PROGRAM\", \"PID\", \"COUNT\");\r\n  printa(\"%-15s %10d %@10d\", @ridnum);\r\n  exit(0);\r\n}\r\n<\/pre>\n","protected":false},"excerpt":{"rendered":"
\u0412 \u043a\u043e\u043c\u043f\u043b\u0435\u043a\u0442\u0435 dtrace tool kit \u0435\u0441\u0442\u044c \u0441\u043a\u0440\u0438\u043f\u0442 opensnoop, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u043f\u0440\u043e\u0441\u043c\u0430\u0442\u0440\u0438\u0432\u0430\u0442\u044c \u043e\u0442\u043a\u0440\u044b\u0442\u044b\u0435 \u0444\u0430\u0439\u043b\u044b \u0432 \u0440\u0435\u0436\u0438\u043c\u0435 \u0440\u0435\u0430\u043b\u044c\u043d\u043e\u0433\u043e \u0432\u0440\u0435\u043c\u0435\u043d\u0438. \u041f\u0440\u0438\u043c\u0435\u0440 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u044f. .\/opensnoop.d -x -n php UID PID COMM FD PATH 620 8483 php -1 \/var\/ld\/ld.config 620 8483 php -1 \/bin\/\/php-cli.ini 620 8483 php -1 \/soft\/sun_free\/php\/php-cli.ini 620 8483 php -1 \/bin\/\/php.ini …<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4,24],"tags":[],"class_list":["post-4666","post","type-post","status-publish","format-standard","hentry","category-freebsd","category-solaris"],"_links":{"self":[{"href":"https:\/\/skeletor.org.ua\/index.php?rest_route=\/wp\/v2\/posts\/4666","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/skeletor.org.ua\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/skeletor.org.ua\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/skeletor.org.ua\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/skeletor.org.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4666"}],"version-history":[{"count":1,"href":"https:\/\/skeletor.org.ua\/index.php?rest_route=\/wp\/v2\/posts\/4666\/revisions"}],"predecessor-version":[{"id":4667,"href":"https:\/\/skeletor.org.ua\/index.php?rest_route=\/wp\/v2\/posts\/4666\/revisions\/4667"}],"wp:attachment":[{"href":"https:\/\/skeletor.org.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4666"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/skeletor.org.ua\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4666"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/skeletor.org.ua\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4666"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}