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* - Update my copyright.Jeff Roberson2009-01-221-16/+27
| | | | | | | | | | | - Print human readable time as a float with two digits of precision. Use ns now as well since clock periods are well into the hundreds of picoseconds now. - Show the average duration in the stats frame. This is often more useful than total duration. Notes: svn path=/head/; revision=187580
* - Permit timestamps to be as far as 2048 ticks apart before we complainJeff Roberson2009-01-201-20/+54
| | | | | | | | | | | | | | | | | | | about invalid timestamps. Nehalem CPUs seem to be synchronized but only within a fraction of a microsecond. - Make the Counter code more flexible to poor timestamps. In general we now complain a lot but render as much as we can. - Change the scaler behavior so it works better with very long and very short traces. We now set the maximum scale such that it properly displays the entire file by default and doesn't permit zooming out beyond the file. This improves other awkward navigation behavior. The interval is now set very small which can't be achieved by simply dragging the mouse. Clicking to the left of or right of the scaler bar will produce increments of a single, very small, interval now. Sponsored by: Nokia Notes: svn path=/head/; revision=187471
* - Add summary information to the title once the file is parsed rather thanJeff Roberson2009-01-181-24/+36
| | | | | | | | | | | | | printing it to the terminal. Now only parse errors go to the terminal. - Speedup drawing by raising and lowering tags only once everything has been drawn. Surprisingly, it now takes a little longer to parse than it does to draw. - Parameterize the layout with X_ and Y_ defines that determine the sizes of various things. - Remove unnecessary tags. Notes: svn path=/head/; revision=187379
* - Significantly speedup hiding and displaying multiple rows by writing anJeff Roberson2009-01-181-31/+224
| | | | | | | | | | | | | | | optimized single pass function for each. This reduces the number of tkinter calls required to the minimum. - Add a right-click context menu for sources. Supported commands hide the source, hide the whole group the source is in, and bring up a stat window. - Add a source stat frame that gives an event frequency table as well as the total duration for each event type that has a duration. This can be used to see, for example, the total time a thread spent running or blocked by a wchan or lock. Notes: svn path=/head/; revision=187376
* - Add a new source configuration menu option that allows hiding andJeff Roberson2009-01-171-4/+173
| | | | | | | | | | displaying sources. - Add functions to the main SchedGraph to facilitate source hiding. The source is simply moved off screen and all other sources are moved to compensate. Notes: svn path=/head/; revision=187359
* - Rewrite the parser to support the new generic schedgraph interface.Jeff Roberson2009-01-171-1002/+608
| | | | | | | | | | | | | | | | | | | | | | This no longer requires any custom classes or parsers to support new event types. - Add an optional command line argument for specifying the clock frequency in ghz. This is useful for traces that do not include KTR_SCHED. Sponsored by: Nokia - Add support for sorting rows by clicking and dragging them to their new position. - Add support for configuring the cpu background colors. - Improve the scaling so a better center is maintained as you zoom. This is not perfect due to precision loss with floats used in the window views. - Add new colors and a random assignment for unknown event types. A table is used for known event types. This is the only event specific information. Notes: svn path=/head/; revision=187358
* Add support for two new event source types:John Baldwin2009-01-131-2/+224
| | | | | | | | | | | | | | | | | | | | | | - Callwheels traced via KTR_CALLOUT. Each CPU is assigned a callwheel source. The events on this source are the execution of individual callout routines. Each routine shows up as a green rectangle while it is executed and the event details include the function pointer and argument. - Locks traced via KTR_LOCK. Currently, each lock name is assigned an event source (since the existing KTR_LOCK traces only include lock names and not pointers). This does mean that if multiple locks of the same name are manipulated, the source line for that name may be confusing. However, for many cases this can be useful. Locks are blue when they are held and purple when contested. The contention support is a bit weak due to limitations in the rw_rlock() and mtx_lock_spin() logging messages currently. I also have not added support for contention on lockmgr, sx, or rmlocks yet. What is there now can be profitably used to examine activity on Giant however. - Expand the width of the event source names column a bit to allow for some of the longer names of these new source types. Notes: svn path=/head/; revision=187156
* - Add some rudimentary support for sorting the list of event sourcesJohn Baldwin2009-01-131-13/+46
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (threads, CPU load counters, etc.). Each source is tagged with a group and an order similar to the SYSINIT SI_SUB_* and SI_ORDER_*. After the file is parsed, all the sources are then sorted. Currently, the only affects of this are that the CPU loads are now sorted by CPU ID (so CPU 0 is always first). However, this makes it easier to add new types of event sources in the future and have them all clustered together instead of intertwined with threads. - Python lists perform insertions at the tail much faster than insertions at the head. For a trace that had a lot of events for a single event source, the constant insertions of new events to the head of the per-source event list caused a noticable slow down. To compensate, append new events to the end of the list during parsing and then reverse the list prior to drawing. - Somewhere in the tkinter internals the coordinates of a canvas are stored in a signed 32-bit integer. As a result, if an the box for an event spans 2^31, it would actually end up having a negative X offset at one end. The result was a single box that covered the entire event source. Kris worked around this for some traces by bumping up the initial ticks/pixel ratio from 1 to 10. However, a divisor of 10 can still be too small for large tracefiles (e.g. with 4 million entries). Instead of hardcoding the initial scaling ratio, calculate it from the time span of the trace file. - Add support for using the mouse wheel to scroll the graph window up and down. Notes: svn path=/head/; revision=187155
* - Remove cumbersome and inaccurate attempt at synchronizing the timestampsJeff Roberson2008-04-261-70/+5
| | | | | | | | | | | post collection. This is too error prone and introduces uncertainty into the timing. We'll simply have to require synchronized TSCs to run schedgraph on MP. Sponsored by: Nokia Notes: svn path=/head/; revision=178571
* Update the timestamp regexps in syncstamp() and monostamp() for > 99999John Baldwin2008-01-251-2/+2
| | | | | | | | traces where there isn't any leading whitespace before the record number in the ktrdump output. Notes: svn path=/head/; revision=175663
* * Remove KTR_CPUMASK, it is not correct to set thisKris Kennaway2008-01-131-2/+3
| | | | | | | | | | * Explain why 32768 entries is usually not enough * Increase the scaling ratio to 10 to deal with 32-bit overflows that can occur in calculating the canvas offsets Notes: svn path=/head/; revision=175306
* o expand usage comments; add cut&paste items for bozo's like meSam Leffler2007-11-191-18/+63
| | | | | | | | | | | | | o add things i want to TODO list o add Record entry to each event which back-maps to the line # in the ktr file; useful for finding local context when the ktr file has lots of items that schedgraph doesn't grok o add missing KTR_SCHED event handlers o expose Counter max value through a ymax method for widget building o show timestamps in records rejected 'cuz time goes backwards Notes: svn path=/head/; revision=173743
* - Fix the ktr header regexp so we match lines with very large indexes.Jeff Roberson2007-11-121-4/+19
| | | | | | | | - Add support for messages where cpu load is added to a remote cpu. - print unmatched lines to stdout Notes: svn path=/head/; revision=173568
* Add some notes clarifying usage and a couple of known bugsKris Kennaway2007-04-221-1/+15
| | | | Notes: svn path=/head/; revision=168940
* - Add a horrible bit of code to detect tsc differences between processors.Jeff Roberson2007-01-241-28/+112
| | | | | | | | | | | | | | | | | | | | | | This only works if there is no significant drift and all processors are running at the same frequency. Fortunately, schedgraph traces on MP machines tend to cover less than a second so drift shouldn't be an issue. - KTRFile::synchstamp() iterates once over the whole list to determine the lowest tsc value and syncs adjusts all other values to match. We assume that the first tick recorded on all cpus happened at the same instant to start with. - KTRFile::monostamp() iterates again over the whole file and checks for a cpu agnostic monotonically increasing clock. If the time ever goes backwards the cpu responsible is adjusted further to fit. This will make the possible incorrect delta between cpus as small as the shortest time between two events. This time can be fairly large due to sched_lock essentially protecting all events. - KTRFile::checkstamp() now returns an adjusted timestamp. - StateEvent::draw() detects states that occur out of order in time and draws them as 0 pixels after printing a warning. Notes: svn path=/head/; revision=166209
* - Print clock information so we know if something is not reported correctlyJeff Roberson2007-01-231-7/+7
| | | | | | | | | | | | | from the tsc. - Set skipnext = 1 for yielding and preempted events so we don't show the event that adds us back to the run queue. It used to be 2 so we would skip the ksegrp run queue addition and the system run queue addition but the ksegrp run queue has gone away. - Don't display down to nanosecond resolution for scheduling events right now. This can sometimes cause a division by zero. Notes: svn path=/head/; revision=166203
* - Add colors for up to 8 cpus.Jeff Roberson2007-01-061-0/+8
| | | | Notes: svn path=/head/; revision=165824
* Teach schedgraph how to parse KTR_CRITICAL records. critical_enter/exitScott Long2005-11-211-0/+18
| | | | | | | | events are now plotted as a counting graph, similar to CPU load, so that their duration and critnest values can be visualized. Notes: svn path=/head/; revision=152663
* Fix two minor typos that caused schedgraph to exit with an exceptionRobert Watson2005-11-061-2/+2
| | | | | | | when running on traces referencing >2 CPUs. Notes: svn path=/head/; revision=152131
* - ktrace(1) has nothing to do with schedgraph. Remove that from theJeff Roberson2005-03-141-1/+0
| | | | | | | instructions. Notes: svn path=/head/; revision=143565
* - Add some notes on what is required to run schedgraph.py successfully.Andrew R. Reiter2004-12-281-0/+11
| | | | | | | | | This was pulled from Jeff Roberson's email to current@ "the other day." Approved by: jeff@ Notes: svn path=/head/; revision=139366
* - For preemption and yield events, we want to skip the next two state eventsJeff Roberson2004-12-261-3/+4
| | | | | | | | | | as they are the setrunqueue() and sched_add() calls. Since they happen immediately before the thread is placed on a run queue they would normally dwarf the more informative preemption or yield event and it is implicitly understood that a thread is back on the run queue as part of these events. Notes: svn path=/head/; revision=139321
* - Call self.checkstamp() in the cpu load parsing functions in case theJeff Roberson2004-12-261-0/+4
| | | | | | | timestamp has wrapped. Notes: svn path=/head/; revision=139320
* - The regexp for the load should have been (/d+), fix this so loads over 9Jeff Roberson2004-12-261-2/+3
| | | | | | | are properly represented. Notes: svn path=/head/; revision=139319
* - Add 'schedgraph' a scheduler trace visualization tool written withJeff Roberson2004-12-261-0/+1209
python and tkinter. Schedgraph takes input from files produces by ktrdump -ct when KTR_SCHED is compiled into the kernel. The output represents the states of each thread with colored line segments as well as colored points for non-state scheduler events. Each line segment and point is clickable to obtain extra detail. Notes: svn path=/head/; revision=139313
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