diff options
Diffstat (limited to 'cddl/contrib/dtracetoolkit/Proc/stacksize.d')
-rwxr-xr-x | cddl/contrib/dtracetoolkit/Proc/stacksize.d | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/cddl/contrib/dtracetoolkit/Proc/stacksize.d b/cddl/contrib/dtracetoolkit/Proc/stacksize.d new file mode 100755 index 0000000..fedcfbc --- /dev/null +++ b/cddl/contrib/dtracetoolkit/Proc/stacksize.d @@ -0,0 +1,95 @@ +#!/usr/sbin/dtrace -s +/* + * stacksize.d - measure stack size for running threads. + * Written using DTrace (Solaris 10 3/05). + * + * $Id: stacksize.d 3 2007-08-01 10:50:08Z brendan $ + * + * USAGE: stacksize.d # hit Ctrl-C to end sample + * + * FIELDS: + * value size of the user stack + * count number of samples at this size + * + * SEE ALSO: pmap(1) + * + * COPYRIGHT: Copyright (c) 2006 Jonathan Adams + * + * 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 + * + * 16-Feb-2006 Jonathan Adams Created this. + * 16-Feb-2006 " " Last update. + */ + +#pragma D option quiet + +this uintptr_t stkinfoptr; +this uintptr_t stkptr; + +dtrace:::BEGIN +{ + trace("Sampling... Hit Ctrl-C to end\n"); +} + +sched:::on-cpu, profile:::profile-997 +{ + this->stkinfoptr = 0; + this->stkptr = 0; +} + +sched:::on-cpu, profile:::profile-997 +/execname != "sched"/ +{ + this->stkinfoptr = curthread->t_lwp->lwp_ustack; + this->stkptr = (uintptr_t)0; +} + +sched:::on-cpu, profile:::profile-997 +/this->stkinfoptr != 0 && curpsinfo->pr_dmodel == PR_MODEL_ILP32/ +{ + this->stkinfo32 = (stack32_t *)copyin(this->stkinfoptr, + sizeof (stack32_t)); + this->stktop = (uintptr_t)this->stkinfo32->ss_sp + + this->stkinfo32->ss_size; + this->stkptr = (uintptr_t)uregs[R_SP]; +} + +sched:::on-cpu, profile:::profile-997 +/this->stkinfoptr != 0 && curpsinfo->pr_dmodel == PR_MODEL_LP64/ +{ + this->stkinfo = (stack_t *)copyin(this->stkinfoptr, + sizeof (stack_t)); + this->stktop = (uintptr_t)this->stkinfo->ss_sp + + this->stkinfo->ss_size; + this->stkptr = (uintptr_t)uregs[R_SP]; +} + +sched:::on-cpu, profile:::profile-997 +/this->stkptr != 0/ +{ + @sizes[execname] = quantize(this->stktop - this->stkptr); +} + +dtrace:::ERROR +{ + @errors[execname] = count(); +} + +dtrace:::END +{ + printa(@sizes); + printf("\nErrors:\n"); + printa(" %@d %s\n", @errors); +} |