4 DO NOT UPDATE THIS FILE. UPDATE package.xml INSTEAD.
5 This file contains the CHANGELOG for the initial release. For subsequent
6 releases, the CHANGLELOG is maintained in the package.xml file itself.
7 Please edit package.xml instead.
10 03/02/2008 kannan, checkin xhprof_html/ and xhprof_lib/ directories.
11 cjiang [These contain PHP sources for the UI as well
12 as various supporting libraries to compute
13 "flat" info, diff reports, aggregate results
14 of multiple runs, typeahead support, etc.]
15 02/20/2008 kannan add basic sanity tests for the extension
16 02/19/2008 kannan register constants for optional profiler flags;
17 add xhprof.output_dir ini setting.
18 01/22/2008 ps port cpu affinity functions to FreeBSD
19 01/15/2008 kannan intercept builtins even if zend_execute_internal
20 were null to begin with
21 01/14/2008 kannan track builtins by default;
22 fix compiler warnings with fwd decls
23 12/22/2008 cjiang Further refactoring of the code for open sourcing:
24 (1). Remove level 1 profiling mode.
25 (2). Add xhprof_sample_enable, xhprof_sample_disable.
26 (3). Unifiy function and global variable prefix.
27 (4). Group relevant functions together.
28 (5). Migrate change history to CHANAGELOG file.
29 12/19/2008 kannan First step refactoring for open sourcing:
30 (1). Put basic direcotry structure
31 (2). Rename extension and function names
32 (3). Add LICENCE header.
33 06/17/2008 veeve use cycle_timer() for XHPROF_MODE_SAMPLED
34 03/27/2008 cjiang Add a 'hash-based' filter to reduce the number
35 of expensive call-stack tranversal on recursion
37 03/17/2008 kannan must not keep state on C stack to handle
38 exit (which causes _zend_bailout to longjmp
39 02/25/2008 kannan add xhprof_flags to toggle various metric
40 collections (buitins on/off, cpu metric on/off
42 02/14/2008 cjiang Use cycle_timer based on 'rdtsc' instruction
43 on x86 machines to replace gettimeofday. rdtsc
44 is extremely cheap compared with gettimeofday
46 12/06/2007 veeve bump version 1.1.2,
48 added mode callbacks, made modes extensible
50 12/05/2007 veeve added doc; house cleaning
51 11/28/2007 kannan split include accounting into load/run_init
52 11/09/2007 kannan memory usage profiling
53 10/27/2007 kannan handle recursive calls, "include" operations
54 10/20/2007 kannan add hierarchical profiling; incl vs. exclusive
55 function times; browser based UI; diff and
57 10/10/2007 hzhao creation (flat function profiles)
60 Haiping Zhao hzhao@facebook.com
61 Kannan Muthukkaruppan kannan@facebook.com
62 Venkat Venkataramani veeve@facebook.com
63 Changhao Jiang cjiang@facebook.com