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Diffstat (limited to 'Java/j_syscolors.d')
| -rwxr-xr-x | Java/j_syscolors.d | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/Java/j_syscolors.d b/Java/j_syscolors.d new file mode 100755 index 000000000000..691ae7eda5eb --- /dev/null +++ b/Java/j_syscolors.d @@ -0,0 +1,135 @@ +#!/usr/sbin/dtrace -Zs +/* + * j_syscolors.d - trace Java method flow plus syscalls, in color. + * Written for the Java hotspot DTrace provider. + * + * $Id: j_syscolors.d 58 2007-10-01 13:36:29Z brendan $ + * + * This traces Java methods if the hotspot provider exists (1.6.0) and + * the flag "+ExtendedDTraceProbes" is used. eg, + * java -XX:+ExtendedDTraceProbes classfile + * + * USAGE: j_syscolors.d { -p PID | -c cmd } # hit Ctrl-C to end + * + * This watches Java method entries and returns, and indents child + * method calls. + * + * FIELDS: + * C CPU-id + * PID Process ID + * TID Thread ID + * DELTA(us) Elapsed time from previous line to this line + * TYPE Type of call (func/syscall) + * NAME Java method or syscall name + * + * If the flow appears to jump, check the TID column - the JVM may have + * switched to another thread. + * + * WARNING: Watch the first column carefully, it prints the CPU-id. If it + * changes, then it is very likely that the output has been shuffled. + * Changes in TID will appear to shuffle output, as we change from one thread + * depth to the next. See Docs/Notes/ALLjavaflow.txt for additional notes. + * + * COPYRIGHT: Copyright (c) 2007 Brendan Gregg. + * + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License, Version 1.0 only + * (the "License"). You may not use this file except in compliance + * with the License. + * + * You can obtain a copy of the license at Docs/cddl1.txt + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * CDDL HEADER END + * + * 09-Sep-2007 Brendan Gregg Created this. + */ + +/* increasing bufsize can reduce drops */ +#pragma D option bufsize=32m +#pragma D option quiet +#pragma D option switchrate=10 + +self int depth[int]; + +dtrace:::BEGIN +{ + color_java = "\033[2;35m"; /* violet, faint */ + color_line = "\033[1;35m"; /* violet, bold */ + color_syscall = "\033[2;32m"; /* green, faint */ + color_off = "\033[0m"; /* default */ + + printf("%3s %6s/%-5s %9s %-8s -- %s\n", "C", "PID", "TID", "DELTA(us)", + "TYPE", "NAME"); +} + +hotspot$target:::method-entry, +hotspot$target:::method-return, +syscall:::entry, +syscall:::return +/self->last == 0 && pid == $target/ +{ + self->last = timestamp; +} + +hotspot$target:::method-entry +{ + this->delta = (timestamp - self->last) / 1000; + this->class = (char *)copyin(arg1, arg2 + 1); + this->class[arg2] = '\0'; + this->method = (char *)copyin(arg3, arg4 + 1); + this->method[arg4] = '\0'; + + printf("%s%3d %6d/%-5d %9d %-8s %*s-> %s.%s%s\n", color_java, cpu, + pid, tid, this->delta, "method", self->depth[arg0] * 2, "", + stringof(this->class), stringof(this->method), color_off); + self->depth[arg0]++; + self->depthlast = self->depth[arg0]; + self->last = timestamp; +} + +hotspot$target:::method-return +{ + this->delta = (timestamp - self->last) / 1000; + this->class = (char *)copyin(arg1, arg2 + 1); + this->class[arg2] = '\0'; + this->method = (char *)copyin(arg3, arg4 + 1); + this->method[arg4] = '\0'; + + self->depth[arg0] -= self->depth[arg0] > 0 ? 1 : 0; + printf("%s%3d %6d/%-5d %9d %-8s %*s<- %s.%s%s\n", color_java, cpu, + pid, tid, this->delta, "method", self->depth[arg0] * 2, "", + stringof(this->class), stringof(this->method), color_off); + self->depthlast = self->depth[arg0]; + self->last = timestamp; +} + +syscall:::entry +/pid == $target/ +{ + this->delta = (timestamp - self->last) / 1000; + printf("%s%3d %6d/%-5d %9d %-8s %*s-> %s%s\n", color_syscall, + cpu, pid, tid, this->delta, "syscall", self->depthlast * 2, "", + probefunc, color_off); + self->last = timestamp; +} + +syscall:::return +/pid == $target/ +{ + this->delta = (timestamp - self->last) / 1000; + printf("%s%3d %6d/%-5d %9d %-8s %*s<- %s%s\n", color_syscall, + cpu, pid, tid, this->delta, "syscall", self->depthlast * 2, "", + probefunc, color_off); + self->last = timestamp; +} + +proc:::exit +/pid == $target/ +{ + exit(0); +} |