diff options
Diffstat (limited to 'systemtap/src/javaioreplay.stp')
| -rw-r--r-- | systemtap/src/javaioreplay.stp | 591 |
1 files changed, 0 insertions, 591 deletions
diff --git a/systemtap/src/javaioreplay.stp b/systemtap/src/javaioreplay.stp deleted file mode 100644 index 4fca0ef..0000000 --- a/systemtap/src/javaioreplay.stp +++ /dev/null @@ -1,591 +0,0 @@ -#!/usr/bin/env stap - -# Copyright 2018 Mimecast Ltd. -# -# Licensed under the Apache License, Version 2.0 (the "License"); -# you may not use this file except in compliance with the License. -# You may obtain a copy of the License at -# -# http://www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and -# limitations under the License. - -# This script is used to capture I/O on a Linux based system in order to replay -# the same I/O via the ioreplay command line utility. -# -# The tool will generate one line per captured I/O syscall to a .capture log -# file. -# -# The key/value separator is ';:,', example line: -# -# t=1509989598023;:,i=17159:17358;:,o=open;:,d=167;:,p=/tmp/test;:,f=0;:,m=438;:, -# -# It may be that SystemTap will skip probes or interrupts probes in case of -# system overload. As a result we can have corrupt lines in the log. That's why -# we use a special field separator ';:,' to detect corrupt lines more robustly. -# -# The line uses the following format keys (we use many different of these, the -# only benefit over a more generic approach is to detect corrupt lines more -# easily): -# -# Format keys: -# t: Time -# i: PID:TID (process and thread ID) -# o: Operation name -# O: Offset or owner/user UID -# W: Whence -# d: File/dir descriptor -# p: File path -# P: File path 2 -# f: Flags -# m: Mode -# b: Bytes -# c: Count -# s: Return status -# t: Optional text -# F: FCNTL command -# G: FCNTL arg or user group UID -# T: Optional text (debugging purpose only) -# a: Address -# A: Address 2 -# - -# Return the full qualified version of path -function absolute_path (path) { - # Is it already a full qualified path? - if (substr(path,0,1) == "/") { - return path; - } - - # Look into the in Kernel task structure to look up the corresponding - # mount point and directory entry... - tc = task_current() - pwd_dentry = @cast(tc, "task_struct")->fs->pwd->dentry - pwd_mnt = @cast(tc, "task_struct")->fs->pwd->mnt - - # Construct a full qualified path from it! - return task_dentry_path(tc, pwd_dentry, pwd_mnt) . "/" . path; -} - -probe syscall.open.return, syscall.openat.return { - if (execname() == "java") { - pathname = user_string(@entry($filename)) - printf("t=%d;:,i=%d:%d;:,o=%s;:,d=%d;:,p=%s;:,f=%d;:,m=%d;:,\n", - gettimeofday_ms(), - pid(), - tid(), - name, - $return, - absolute_path(pathname), - @entry($flags), - @entry($mode)); - } -} - -probe syscall.lseek.return { - if(execname() == "java") { - printf("t=%d;:,i=%d:%d;:,o=%s;:,d=%d;:,O=%d;:,W=%d;:,b=%d;:,\n", - gettimeofday_ms(), - pid(), - tid(), - name, - @entry($fd), - @entry($offset), - @entry($whence), - $return); - } -} - -probe syscall.fcntl.return { - if(execname() == "java") { - printf("t=%d;:,i=%d:%d;:,o=%s;:,d=%d;:,F=%d;:,G=%d;:,s=%d;:,\n", - gettimeofday_ms(), - pid(), - tid(), - name, - @entry($fd), - @entry($cmd), - @entry($arg), - $return); - } -} - -probe syscall.creat.return { - if (execname() == "java") { - pathname = user_string(@entry($pathname)) - printf("t=%d;:,i=%d:%d;:,o=%s;:,d=%d;:,p=%s;:,m=%d;:,\n", - gettimeofday_ms(), - pid(), - tid(), - name, - $return, - absolute_path(pathname), - @entry($mode)); - } -} - -probe syscall.write.return, syscall.writev.return { - if(execname() == "java") { - printf("t=%d;:,i=%d:%d;:,o=%s;:,d=%d;:,b=%d;:,\n", - gettimeofday_ms(), - pid(), - tid(), - name, - @entry($fd), - $return); - } -} - -probe syscall.unlink.return { - if(execname() == "java") { - pathname = user_string(@entry($pathname)) - printf("t=%d;:,i=%d:%d;:,o=%s;:,p=%s;:,s=%d;:,\n", - gettimeofday_ms(), - pid(), - tid(), - name, - absolute_path(pathname), - $return); - } -} - -probe syscall.unlinkat.return { - if(execname() == "java") { - pathname = user_string(@entry($pathname)) - printf("t=%d;:,i=%d:%d;:,o=%s;:,d=%d;:,p=%s;:,f=%d;:,s=%d;:,\n", - gettimeofday_ms(), - pid(), - tid(), - name, - @entry($dfd), - absolute_path(pathname), - @entry($flag), - $return); - } -} - -probe syscall.rename.return, syscall.renameat.return, syscall.renameat2.return { - if(execname() == "java") { - oldname = user_string(@entry($oldname)) - newname = user_string(@entry($newname)) - printf("t=%d;:,i=%d:%d;:,o=%s;:,p=%s;:,P=%s;:,s=%d;:,\n", - gettimeofday_ms(), - pid(), - tid(), - name, - absolute_path(oldname), - absolute_path(newname), - $return); - } -} - -probe syscall.read.return, syscall.readv.return { - if(execname() == "java") { - printf("t=%d;:,i=%d:%d;:,o=%s;:,d=%d;:,b=%d;:,\n", - gettimeofday_ms(), - pid(), - tid(), - name, - @entry($fd), - $return); - } -} - -probe syscall.readahead.return { - if(execname() == "java") { - printf("t=%d;:,i=%d:%d;:,o=%s;:,d=%d;:,b=%ld;:,O=%ld;:,c=%ld\n", - gettimeofday_ms(), - pid(), - tid(), - name, - @entry($fd), - $return, - @entry($offset), - @entry($count)); - } -} - -probe syscall.readdir.return { - if(execname() == "java") { - printf("t=%d;:,i=%d:%d;:,o=%s;:,d=%d;:,s=%d;:,\n", - gettimeofday_ms(), - pid(), - tid(), - name, - @entry($fd), - $return); - } -} - -probe syscall.readlink.return { - if(execname() == "java") { - pathname = user_string(@entry($path)) - printf("t=%d;:,i=%d:%d;:,o=%s;:,p=%s;:,s=%d;:,\n", - gettimeofday_ms(), - pid(), - tid(), - name, - absolute_path(pathname), - $return); - } -} - -probe syscall.readlinkat.return { - if(execname() == "java") { - pathname = user_string(@entry($pathname)) - printf("t=%d;:,i=%d:%d;:,o=%s;:,p=%s;:,s=%d;:,\n", - gettimeofday_ms(), - pid(), - tid(), - name, - absolute_path(pathname), - $return); - } -} - -probe syscall.fdatasync.return, syscall.fsync.return { - if(execname() == "java") { - printf("t=%d;:,i=%d:%d;:,o=%s;:,d=%d;:,s=%d;:,\n", - gettimeofday_ms(), - pid(), - tid(), - name, - @entry($fd), - $return); - } -} - -probe syscall.sync_file_range.return { - if(execname() == "java") { - printf("t=%d;:,i=%d:%d;:,o=%s;:,d=%d;:,O=%ld;:,b=%ld;:,s=%d;:,\n", - gettimeofday_ms(), - pid(), - tid(), - name, - @entry($fd), - @entry($offset), - @entry($nbytes), - $return); - } -} - -probe syscall.sync.return { - if(execname() == "java") { - printf("t=%d;:,i=%d:%d;:,o=%s;:,s=%d;:,\n", - gettimeofday_ms(), - pid(), - tid(), - name, - $return); - } -} - -probe syscall.syncfs.return { - if(execname() == "java") { - printf("t=%d;:,i=%d:%d;:,o=%s;:,d=%d;:,s=%d;:,\n", - gettimeofday_ms(), - pid(), - tid(), - name, - @entry($fd), - $return); - } -} - -probe syscall.close.return { - if(execname() == "java") { - printf("t=%d;:,i=%d:%d;:,o=%s;:,d=%d;:,s=%d;:,\n", - gettimeofday_ms(), - pid(), - tid(), - name, - @entry($fd), - $return); - } -} - -probe syscall.getdents.return { - if(execname() == "java") { - printf("t=%d;:,i=%d:%d;:,o=%s;:,d=%d;:,c=%d;:,b=%d;:,\n", - gettimeofday_ms(), - pid(), - tid(), - name, - @entry($fd), - @entry($count), - $return); - } -} - -probe syscall.mkdir.return { - if(execname() == "java") { - pathname = user_string(@entry($pathname)) - printf("t=%d;:,i=%d:%d;:,o=%s;:,p=%s;:,m=%d;:,s=%d;:,\n", - gettimeofday_ms(), - pid(), - tid(), - name, - absolute_path(pathname), - @entry($mode), - $return); - } -} - -probe syscall.rmdir.return { - if(execname() == "java") { - pathname = user_string(@entry($pathname)) - printf("t=%d;:,i=%d:%d;:,o=%s;:,p=%s;:,s=%d;:,\n", - gettimeofday_ms(), - pid(), - tid(), - name, - absolute_path(pathname), - $return); - } -} - -probe syscall.mkdirat.return { - if(execname() == "java") { - pathname = user_string(@entry($pathname)) - printf("t=%d;:,i=%d:%d;:,o=%s;:,d=%d;:,p=%s;:,m=%d;:,s=%d;:,\n", - gettimeofday_ms(), - pid(), - tid(), - name, - @entry($dfd), - absolute_path(pathname), - @entry($mode), - $return); - } -} - -probe syscall.stat.return { - if(execname() == "java") { - pathname = user_string(@entry($filename)) - printf("t=%d;:,i=%d:%d;:,o=%s;:,p=%s;:,s=%d;:,\n", - gettimeofday_ms(), - pid(), - tid(), - name, - absolute_path(pathname), - $return); - } -} - -probe syscall.statfs.return, syscall.statfs64.return { - if(execname() == "java") { - pathname = user_string(@entry($pathname)) - printf("t=%d;:,i=%d:%d;:,o=%s;:,p=%s;:,s=%d;:,\n", - gettimeofday_ms(), - pid(), - tid(), - name, - absolute_path(pathname), - $return); - } -} - -probe syscall.fstatfs.return, syscall.fstatfs64.return { - if(execname() == "java") { - printf("t=%d;:,i=%d:%d;:,o=%s;:,d=%d;:,s=%d;:,\n", - gettimeofday_ms(), - pid(), - tid(), - name, - @entry($fd), - $return); - } -} - -probe syscall.lstat.return { - if(execname() == "java") { - pathname = user_string(@entry($filename)) - printf("t=%d;:,i=%d:%d;:,o=%s;:,p=%s;:,s=%d;:,\n", - gettimeofday_ms(), - pid(), - tid(), - name, - absolute_path(pathname), - $return); - } -} - -probe syscall.fstat.return { - if(execname() == "java") { - printf("t=%d;:,i=%d:%d;:,o=%s;:,d=%d;:,s=%d;:,\n", - gettimeofday_ms(), - pid(), - tid(), - name, - @entry($fd), - $return); - } -} - -probe syscall.fstatat.return { - if(execname() == "java") { - pathname = user_string(@entry($filename)) - printf("t=%d;:,i=%d:%d;:,o=%s;:,d=%ld;:,p=%s;:,f=%d;:,s=%d;:,\n", - gettimeofday_ms(), - pid(), - tid(), - name, - @entry($dfd), - absolute_path(pathname), - @entry($flag), - $return); - } -} - -probe syscall.chmod.return, syscall.fchmodat.return { - if(execname() == "java") { - pathname = user_string(@entry($filename)) - printf("t=%d;:,i=%d:%d;:,o=%s;:,p=%s;:,m=%d;:,s=%d;:,\n", - gettimeofday_ms(), - pid(), - tid(), - name, - absolute_path(pathname), - @entry($mode), - $return); - } -} - -probe syscall.fchmod.return { - if(execname() == "java") { - printf("t=%d;:,i=%d:%d;:,o=%s;:,d=%d;:,m=%d;:,s=%d;:,\n", - gettimeofday_ms(), - pid(), - tid(), - name, - @entry($fd), - @entry($mode), - $return); - } -} - -probe syscall.chown.return, syscall.chown16.return, - syscall.lchown.return, syscall.lchown16.return { - if(execname() == "java") { - pathname = user_string(@entry($filename)) - printf("t=%d;:,i=%d:%d;:,o=%s;:,p=%s;:,O=%d;:,G=%d;:,s=%d;:,\n", - gettimeofday_ms(), - pid(), - tid(), - name, - absolute_path(pathname), - @entry($user), - @entry($group), - $return); - } -} - -probe syscall.fchown.return, syscall.fchown16.return { - if(execname() == "java") { - printf("t=%d;:,i=%d:%d;:,o=%s;:,d=%ld;:,O=%d;:,G=%d;:,s=%d;:,\n", - gettimeofday_ms(), - pid(), - tid(), - name, - @entry($fd), - @entry($user), - @entry($group), - $return); - } -} - -probe syscall.fchownat.return { - pathname = user_string(@entry($filename)) - if(execname() == "java") { - printf("t=%d;:,i=%d:%d;:,o=%s;:,p=%s;:,O=%d;:,G=%d;:,f=%d;:,s=%d;:,\n", - gettimeofday_ms(), - pid(), - tid(), - name, - absolute_path(pathname), - @entry($user), - @entry($group), - @entry($flag), - $return); - } -} - -probe syscall.mmap2.return { - if(execname() == "java") { - printf("t=%d;:,i=%d:%d;:,o=%s;:,a=%ld;:,b=%ld;:,m=%d;:,f=%d;:,d=%d;:,O=%ld;:,A=%ld;:,\n", - gettimeofday_ms(), - pid(), - tid(), - name, - @entry($addr), - @entry($len), - @entry($prot), - @entry($flags), - @entry($fd), - @entry($pgoff), - $return); - } -} - -probe syscall.mremap.return { - if(execname() == "java") { - printf("t=%d;:,i=%d:%d;:,o=%s;:,a=%ld;:,A=%ld;:,b=%ld;:,f=%d;:,s=%d;:,\n", - gettimeofday_ms(), - pid(), - tid(), - name, - @entry($new_addr), - @entry($addr), - @entry($new_len), - @entry($flags), - $return); - } -} - -probe syscall.munmap.return { - if(execname() == "java") { - printf("t=%d;:,i=%d:%d;:,o=%s;:,a=%ld;:,b=%ld;:,s=%d;:,\n", - gettimeofday_ms(), - pid(), - tid(), - name, - @entry($addr), - @entry($len), - $return); - } -} - -probe syscall.msync.return { - if(execname() == "java") { - printf("t=%d;:,i=%d:%d;:,o=%s;:,a=%ld;:,b=%ld;:,f=%d;:,s=%d;:,\n", - gettimeofday_ms(), - pid(), - tid(), - name, - @entry($start), - @entry($len), - @entry($flags), - $return); - } -} - -probe syscall.exit_group { - if(execname() == "java") { - printf("t=%d;:,i=%d:%d;:,o=%s;:,\n", - gettimeofday_ms(), - pid(), - tid(), - name); - } -} - -# Stop probing after 1h (for safety) -probe timer.s(3600) { - exit(); -} - -# vim: tabstop=4 expandtab shiftwidth=4 softtabstop=4 |