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(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. |
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| .. | ||
| build | ||
| debugscripts | ||
| diag | ||
| kerneldoc | ||
| KSE | ||
| LibraryReport | ||
| regression | ||
| sched | ||
| test | ||
| tools | ||
| install.sh | ||
| make_libdeps.sh | ||
| README | ||
$FreeBSD$ This directory tree contains tools used for the maintenance and testing of FreeBSD. There is no toplevel Makefile structure since these tools are not meant to be built as part of the standard system, though there may be individual Makefiles in some of the subdirs. Please read the README files in the subdirs for further information.