search for: vtimestamp

Hello, I''m using the below dtrace script to capture the flow and times of kernel functions, from an ioctl() call. After an entry into restorectx(), the trace of startimestamp - vtimestamp makes a dramatic jump downwards. Here''s the snippet showing the jump... 6 -> di_checkmem 8 220176600 6 <- di_checkmem 7 220176700 100 6 -> di_mem_addr...

...500); } catch (Exception e) { } //////////////////// real CPU intensive operation /////////////////////////// for (int i = 1; i < stop; i++) { stop = stop * stop * i; }; return stop; } For above method, I can get time-stamp by using "vtimestamp" and method-entry/return probes. But I also want to how much time it is spending as idle ( in above case 1500 ms) and how much in real CPU intensive operation. Is there any way to do this? Help appreciated. Thanks, Ajit -- This message posted from opensolaris.org

Hello all, I''m looking for answers about a question that i did post on ZFS/UFS discuss... without success, now i''m here to see your points. Any tips? As you know, i''m making some "screencasts" about a few solaris features. That screencasts is one point of many tests that i''m making with solaris 10. Now, with some tests with dtrace, i have saw a

..."size", "flags", "CPU", "Wall Time"); } fbt::shmget:entry { self->key = arg0; self->size = arg1; self->flags = arg2; self->shmgettimestamp = timestamp; self->shmgetvtimestamp = vtimestamp; } fbt::shmget:return / self->shmgettimestamp / { /* operation key shmid size flags cpu wall */ printf("%-10s %-10x %-10x %-10d %-10d %-10d %-10d\n", probefunc, self->key, arg1,...

...utput after the errors, and I''m trying to understand if the errors are affecting my output(and the cause, of course) Thanks for any pointers, -ps intr.d from the SDT provider chapter in the guide. ------------------------------------------------- interrupt-start { self->ts = vtimestamp; } interrupt-complete /self->ts/ { this->devi = (struct dev_info *)arg0; @[stringof(`devnamesp[this->devi->devi_major].dn_name), this->devi->devi_instance] = quantize(vtimestamp - self->ts); } output on running: ------------------ bash-3.00# dtrac...

...n console very slow, sometimes occured timeout error. When use ./java_method.d to trace the process of Websphere within the period of startup time. It occured below error: Content of java_method.d: #!/usr/sbin/dtrace -s dvm$target:::method-entry { self->ts[copyinstr(arg0),copyinstr(arg1)] = vtimestamp; } dvm$target:::method-return { @ts[copyinstr(arg0),copyinstr(arg1)] = sum(vtimestamp - self->ts[copyinstr(arg0),copyinstr(arg1)]); } Error message: .................. dtrace: error on enabled probe ID 1 (ID 5644: dvm2514:libdvmpi.so:cbMethodEntry: method-entry): invalid address (0x0) in acti...

...ove in the context of 0.9s or 17.9s? Thanks, Joel --- [1] sigcont.d BEGIN { system("kill -CONT %d &\n", $target); } [2] menu-construct.d BEGIN { self->ts = 0; self->vts = 0; } pid$target::nsMenuX??MenuConstruct*:entry { self->ts = timestamp; self->vts = vtimestamp; } pid$target::nsMenuX??MenuConstruct*:return /self->ts/ { this->ts = timestamp - self->ts; this->vts = vtimestamp - self->vts; @tsint = sum(this->ts / 1000000); @tsfrac = sum(this->ts % 1000000); @vtsint = sum(this->vts / 1000000); @vtsfrac = sum(this->vts %...

hi, I am trying to find out the avg cpu time spent in each of my user methods (exclusive of other methods invoked by a method). Hence the following snippet failed miserably: ----------------------- pid$target:a.out::entry { time[probefunc] = timestamp;} pid$target:a.out::return { @spent[probefunc] = avg(timestamp - time[probefunc]);} END { printa(@spent);}

Does dtrace have a problem catching the return from memset on Mac OSX? The script below catches the entry just fine but the return clause is never entered. Thanks, Joel --- pid$target::memset:entry /arg1 == 0/ { self->size = arg2; self->ts = timestamp; self->vts = vtimestamp; } pid$target::memset:return /self->size/ { @ts = sum(timestamp - self->ts); @vts = sum(vtimestamp - self->vts); @size = sum(self->size); @count = count(); self->ts = 0; self->vts = 0; self->size = 0; } END { printa("elapsed: %@u\n", @ts);...

...th static probes but the probes don''t show up unless Firefox is running and then only as mozillaNNNNN, i.e. mozilla$target. Thanks, Joel --- BEGIN { self->ts = 0; self->vts = 0; } mozilla$target:::process-xul-reflow-entry { self->ts = timestamp; self->vts = vtimestamp; self->roots = arg0; } mozilla$target:::process-xul-reflow-return /self->ts/ { this->ts = timestamp - self->ts; this->vts = vtimestamp - self->vts; printf("\n"); printf("# roots: %u\n", self->roots); printf("elapsed: %u.%06ums\n&quot...

We''re running a Solaris 10 container, with an Oracle 9.2.0.4 database - every 5-10 min, an Oracle process shoots up (using 20% + CPU) and then goes down in CPU %, doing a [i]pollsys [/i](see it via dtruss). I tried using some of the trace scripts in the Dtracetoolkit to see what the process is doing, but without any luck - also tried with the following, but dtrace process goes up to 30%

Hello all, I have been taking basic steps with DTrace and subscribed today to this list. I have written a simple DTrace script to trace all the function entry/exit from a given function: #pragma D option flowindent pid$1::*mysql_select*:entry { self -> start = vtimestamp ; } pid$1::*mysql_select*:return /self -> start/ { self -> start =0 ; } pid$1:::entry, pid$1:::return /self->start/ { trace (vtimestamp - self->start); } sample output: 0 -> __1cMmysql_select6FpnDTHD_pppnEItem_pnKTABLE_LIST_IrnEList4n0B___p2IpnIst_or der_9D39DXpnNselect_resu...

...fs`spa_sync+0x1b0 zfs`txg_sync_thread+0x134 unix`thread_start+0x4 2608 unix`cpu_halt+0xc8 unix`idle+0x128 unix`thread_start+0x4 287026 bash-3.00# bash-3.00# dtrace -n fbt:::entry''{self->vt=vtimestamp;}'' -n fbt:::return''/self->vt/{@[probemod,probefunc]=sum(vtimestamp-self->vt);}'' -n tick-10s''{trunc(@,20);printa(@);exit(0);}'' dtrace: description ''fbt:::entry'' matched 24134 probes dtrace: description ''fbt:::return'...