diff options
Diffstat (limited to 'cddl/contrib/dtracetoolkit/dist/Perl/pl_flowtime.d')
-rwxr-xr-x | cddl/contrib/dtracetoolkit/dist/Perl/pl_flowtime.d | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/cddl/contrib/dtracetoolkit/dist/Perl/pl_flowtime.d b/cddl/contrib/dtracetoolkit/dist/Perl/pl_flowtime.d new file mode 100755 index 0000000..1fa727c --- /dev/null +++ b/cddl/contrib/dtracetoolkit/dist/Perl/pl_flowtime.d @@ -0,0 +1,88 @@ +#!/usr/sbin/dtrace -Zs +/* + * pl_flowtime.d - snoop Perl subroutines with flow and delta times. + * Written for the Perl DTrace provider. + * + * $Id: pl_flowtime.d 41 2007-09-17 02:20:10Z brendan $ + * + * This traces shell activity from Perl programs on the system that are + * running with Perl provider support. + * + * USAGE: pl_flowtime.d # hit Ctrl-C to end + * + * This watches Perl subroutine entries and returns, and indents child + * subroutine calls. + * + * FIELDS: + * C CPU-id + * TIME(us) Time since boot, us + * FILE Filename that this subroutine belongs to + * DELTA(us) Elapsed time from previous line to this line + * SUB Perl subroutine name + * + * LEGEND: + * -> method entry + * <- method return + * + * Filename and subroutine names are printed if available. + * + * 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. + * + * 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. + */ + +#pragma D option quiet +#pragma D option switchrate=10 + +self int depth; +self int last; + +dtrace:::BEGIN +{ + printf("%3s %-16s %-16s %9s -- %s\n", "C", "TIME(us)", "FILE", + "DELTA(us)", "SUB"); +} + +perl*:::sub-entry, +perl*:::sub-return +/self->last == 0/ +{ + self->last = timestamp; +} + +perl*:::sub-entry +{ + this->delta = (timestamp - self->last) / 1000; + printf("%3d %-16d %-16s %9d %*s-> %s\n", cpu, timestamp / 1000, + basename(copyinstr(arg1)), this->delta, self->depth * 2, "", + copyinstr(arg0)); + self->depth++; + self->last = timestamp; +} + +perl*:::sub-return +{ + this->delta = (timestamp - self->last) / 1000; + self->depth -= self->depth > 0 ? 1 : 0; + printf("%3d %-16d %-16s %9d %*s<- %s\n", cpu, timestamp / 1000, + basename(copyinstr(arg1)), this->delta, self->depth * 2, "", + copyinstr(arg0)); + self->last = timestamp; +} |