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Add curvefs-fuse-bt trace tool.
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‎trace/README.md‎

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Usage
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---
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* [curvefs-fuse-bt](curvefs-fuse-bt)
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```shell
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./curvefs-fuse-bt -p 12345
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```

‎trace/curvefs-fuse-bt‎

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#!/usr/bin/env bash
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# Copyright (C) Jingli Chen (Wine93)
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############################ GLOBAL VARIABLES
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pid=0
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dump_src=0
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############################ FUNCTIONS
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msg() {
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printf '%b' "$1" >&2
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}
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die() {
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msg "\33[31m[✘]\33[0m ${1}${2}"
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exit 1
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}
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gen_bpftrace_src() {
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local exec_path="$1"
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cat << EOF
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struct fuse_file_info {
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int flags;
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unsigned int writepage : 1;
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unsigned int direct_io : 1;
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unsigned int keep_cache : 1;
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unsigned int flush : 1;
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unsigned int nonseekable : 1;
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unsigned int flock_release : 1;
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unsigned int cache_readdir : 1;
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unsigned int padding : 25;
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unsigned int padding2 : 32;
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uint64_t fh;
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uint64_t lock_owner;
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uint32_t poll_events;
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};
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BEGIN {
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printf ("Start tracing fuse operation for $exec_path, Hit Ctrl-C to end.\n");
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}
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uprobe:$exec_path:FuseOpLookup
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{
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printf ("%s: pid(%d) tid(%d) parent(%d) name(%s)\n",
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func, pid, tid, args->parent, str(args->name));
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}
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uprobe:$exec_path:FuseOpGetAttr
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{
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printf ("%s: pid(%d) tid(%d) ino(%d) fi->fh(%d)\n",
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func, pid, tid, args->ino, args->fi->fh);
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}
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uprobe:$exec_path:FuseOpSetAttr
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{
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printf ("%s: pid(%d) tid(%d) ino(%d) fi->fh(%d) to_set(%d)\n",
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func, pid, tid, args->ino, args->fi->fh, args->to_set);
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}
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uprobe:$exec_path:FuseOpReadLink
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{
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printf ("%s: pid(%d) tid(%d) ino(%d)\n",
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func, pid, tid, args->ino);
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}
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uprobe:$exec_path:FuseOpMkNod
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{
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printf ("%s: pid(%d) tid(%d) parent(%d) name(%s)\n",
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func, pid, tid, args->parent, str(args->name));
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}
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uprobe:$exec_path:FuseOpMkDir
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{
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printf ("%s: pid(%d) tid(%d) parent(%d) name(%s)\n",
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func, pid, tid, args->parent, str(args->name));
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}
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uprobe:$exec_path:FuseOpUnlink
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{
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printf ("%s: pid(%d) tid(%d) parent(%d) name(%s)\n",
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func, pid, tid, args->parent, str(args->name));
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}
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uprobe:$exec_path:FuseOpRmDir
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{
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printf ("%s: pid(%d) tid(%d) parent(%d) name(%s)\n",
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func, pid, tid, args->parent, str(args->name));
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}
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uprobe:$exec_path:FuseOpSymlink
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{
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printf ("%s: pid(%d) tid(%d) parent(%d) name(%s)\n",
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func, pid, tid, args->parent, str(args->name));
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}
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uprobe:$exec_path:FuseOpRename
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{
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printf ("%s: pid(%d) tid(%d) parent(%d) name(%s) newparent(%d) newname(%s)\n",
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func, pid, tid, args->parent, str(args->name), args->newparent, str(args->newname));
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}
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uprobe:$exec_path:FuseOpLink
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{
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printf ("%s: pid(%d) tid(%d) ino(%d) newparent(%d) newname(%s)\n",
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func, pid, tid, args->ino, args->newparent, str(args->newname));
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}
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uprobe:$exec_path:FuseOpOpen
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{
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printf ("%s: pid(%d) tid(%d) ino(%d)\n",
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func, pid, tid, args->ino);
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}
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uprobe:$exec_path:FuseOpRead
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{
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printf ("%s: pid(%d) tid(%d) ino(%d) size(%d) off(%d)\n",
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func, pid, tid, args->ino, args->size, args->off);
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}
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uprobe:$exec_path:FuseOpWrite
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{
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printf ("%s: pid(%d) tid(%d) ino(%d) size(%d) off(%d)\n",
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func, pid, tid, args->ino, args->size, args->off);
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}
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uprobe:$exec_path:FuseOpFlush
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{
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printf ("%s: pid(%d) tid(%d) ino(%d)\n",
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func, pid, tid, args->ino);
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}
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uprobe:$exec_path:FuseOpRelease
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{
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printf ("%s: pid(%d) tid(%d) ino(%d)\n",
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func, pid, tid, args->ino);
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}
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uprobe:$exec_path:FuseOpFsync
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{
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printf ("%s: pid(%d) tid(%d) ino(%d)\n",
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func, pid, tid, args->ino);
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}
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uprobe:$exec_path:FuseOpOpenDir
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{
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printf ("%s: pid(%d) tid(%d) ino(%d) fi->fh(%d)\n",
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func, pid, tid, args->ino, args->fi->fh);
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}
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uprobe:$exec_path:FuseOpReadDir
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{
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printf ("%s: pid(%d) tid(%d) ino(%d) size(%d) off(%d) fi->fh(%d)\n",
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func, pid, tid, args->ino, args->size, args->off, args->fi->fh);
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}
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uprobe:$exec_path:FuseOpReleaseDir
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{
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printf ("%s: pid(%d) tid(%d) ino(%d)\n",
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func, pid, tid, args->ino);
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}
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uprobe:$exec_path:FuseOpStatFs
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{
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printf ("%s: pid(%d) tid(%d) ino(%d)\n",
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func, pid, tid, args->ino);
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}
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uprobe:$exec_path:FuseOpSetXattr
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{
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printf ("%s: pid(%d) tid(%d) ino(%d) name(%s) value(%s)\n",
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func, pid, tid, args->ino, str(args->name), str(args->value));
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}
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uprobe:$exec_path:FuseOpGetXattr
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{
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printf ("%s: pid(%d) tid(%d) ino(%d) name(%s)\n",
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func, pid, tid, args->ino, str(args->name));
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}
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uprobe:$exec_path:FuseOpListXattr
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{
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printf ("%s: pid(%d) tid(%d) ino(%d) size(%d)\n",
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func, pid, tid, args->ino, args->size);
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}
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uprobe:$exec_path:FuseOpCreate
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{
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printf ("%s: pid(%d) tid(%d) parent(%d) name(%s)\n",
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func, pid, tid, args->parent, str(args->name));
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}
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uprobe:$exec_path:FuseOpReadDirPlus
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{
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printf ("%s: pid(%d) tid(%d) ino(%d) size(%d) off(%d) fi->fh(%d)\n",
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func, pid, tid, args->ino, args->size, args->off, args->fi->fh);
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}
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uprobe:$exec_path:FuseOpBmap
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{
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printf ("FuseOpBmap\n")
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}
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EOF
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}
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get_options() {
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while getopts "dhp:" opts
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do
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case $opts in
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d)
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dump_src=1
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;;
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h)
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usage
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exit 0
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;;
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p)
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pid=$OPTARG
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;;
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\?)
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usage
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exit 1
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;;
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esac
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done
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}
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usage () {
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cat << _EOC_
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Usage:
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curvefs-fuse-bt [options]
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Options:
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-d Dump out the bpftrace script source.
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-h Print this usage.
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-p <pid> Specify the user process pid.
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Examples:
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curvefs-fuse-bt -p 12345
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curvefs-fuse-bt -p 12345 -d
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_EOC_
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}
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main() {
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get_options "$@"
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if [ $pid -eq 0 ]; then
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die "No process pid specified by the -p option.\n";
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fi
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local exec_path="/proc/${pid}/root/curvefs/client/sbin/curve-fuse"
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if [ ! -f "$exec_path" ]; then
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die "Process $pid is not running or " \
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"you do not have enough permissions.\n"
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fi
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local bpftrace_src=`gen_bpftrace_src "$exec_path"`
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if [ $dump_src -eq 1 ]; then
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echo "$bpftrace_src"
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exit 0
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fi
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echo "$bpftrace_src" | bpftrace -
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}
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############################ MAIN()
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main "$@"

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