archived-presentations/slides/xdebug/flamegraph.xml

<slide>
<title>Flamegraphs</title>

<div effect="fade-out">
<example>
xdebug.mode=trace
xdebug.start_with_request=no
xdebug.trace_format=3 // time=3, memory=4
</example>
</div>

<div effect="fade-in-out">
<blurb>Outputs to a file:</blurb>
<example class="small">
{main};require;require_once;create_initial_taxonomies;__ 2574
{main};require;require_once;create_initial_taxonomies;register_taxonomy;wp_parse_args 1803
{main};require;require_once;create_initial_taxonomies;register_taxonomy;WP_Taxonomy->__construct;WP_Taxonomy->set_props;wp_parse_args 1733
{main};require;require_once;create_initial_taxonomies;register_taxonomy;WP_Taxonomy->__construct;WP_Taxonomy->set_props;apply_filters 2344
{main};require;require_once;create_initial_taxonomies;register_taxonomy;WP_Taxonomy->__construct;WP_Taxonomy->set_props;apply_filters 2434
{main};require;require_once;create_initial_taxonomies;register_taxonomy;WP_Taxonomy->__construct;WP_Taxonomy->set_props;array_merge 2876
{main};require;require_once;create_initial_taxonomies;register_taxonomy;WP_Taxonomy->__construct;WP_Taxonomy->set_props;array_merge 1723
{main};require;require_once;create_initial_taxonomies;register_taxonomy;WP_Taxonomy->__construct;WP_Taxonomy->set_props;array_unique 1403
{main};require;require_once;create_initial_taxonomies;register_taxonomy;WP_Taxonomy->__construct;WP_Taxonomy->set_props;get_taxonomy_labels;WP_Taxonomy::get_default
{main};require;require_once;create_initial_taxonomies;register_taxonomy;WP_Taxonomy->__construct;WP_Taxonomy->set_props;get_taxonomy_labels;_get_custom_object_label
{main};require;require_once;create_initial_taxonomies;register_taxonomy;WP_Taxonomy->__construct;WP_Taxonomy->set_props;get_taxonomy_labels;_get_custom_object_label
{main};require;require_once;create_initial_taxonomies;register_taxonomy;WP_Taxonomy->__construct;WP_Taxonomy->set_props;get_taxonomy_labels;apply_filters 2525
{main};require;require_once;create_initial_taxonomies;register_taxonomy;WP_Taxonomy->__construct;WP_Taxonomy->set_props;get_taxonomy_labels;array_merge 3687
{main};require;require_once;create_initial_taxonomies;register_taxonomy;WP_Taxonomy->__construct;WP_Taxonomy->set_props;get_taxonomy_labels 13674
{main};require;require_once;create_initial_taxonomies;register_taxonomy;WP_Taxonomy->__construct;WP_Taxonomy->set_props 30859
{main};require;require_once;create_initial_taxonomies;register_taxonomy;WP_Taxonomy->__construct 3997
{main};require;require_once;create_initial_taxonomies;register_taxonomy;WP_Taxonomy->add_rewrite_rules 1743
{main};require;require_once;create_initial_taxonomies;register_taxonomy;WP_Taxonomy->add_hooks;add_filter;WP_Hook->add_filter;_wp_filter_build_unique_id 1583
{main};require;require_once;create_initial_taxonomies;register_taxonomy;WP_Taxonomy->add_hooks;add_filter;WP_Hook->add_filter 5380
{main};require;require_once;create_initial_taxonomies;register_taxonomy;WP_Taxonomy->add_hooks;add_filter 4588
{main};require;require_once;create_initial_taxonomies;register_taxonomy;WP_Taxonomy->add_hooks 3257
{main};require;require_once;create_initial_taxonomies;register_taxonomy;do_action 2475
{main};require;require_once;create_initial_taxonomies;register_taxonomy;do_action 2524
{main};require;require_once;create_initial_taxonomies;register_taxonomy 16131
{main};require;require_once;create_initial_taxonomies;_x;translate_with_gettext_context;get_translations_for_domain 1624
{main};require;require_once;create_initial_taxonomies;_x;translate_with_gettext_context;NOOP_Translations->translate 1513
{main};require;require_once;create_initial_taxonomies;_x;translate_with_gettext_context;apply_filters 2174
{main};require;require_once;create_initial_taxonomies;_x;translate_with_gettext_context;apply_filters 2204
{main};require;require_once;create_initial_taxonomies;_x;translate_with_gettext_context 8876
{main};require;require_once;create_initial_taxonomies;_x 2925
{main};require;require_once;create_initial_taxonomies;_x;translate_with_gettext_context;get_translations_for_domain 1583
{main};require;require_once;create_initial_taxonomies;_x;translate_with_gettext_context;NOOP_Translations->translate 1483
{main};require;require_once;create_initial_taxonomies;_x;translate_with_gettext_context;apply_filters 2214
{main};require;require_once;create_initial_taxonomies;_x;translate_with_gettext_context;apply_filters 2214
{main};require;require_once;create_initial_taxonomies;_x;translate_with_gettext_context 8777
{main};require;require_once;create_initial_taxonomies;_x 2785
{main};require;require_once;create_initial_taxonomies;current_theme_supports 2114
{main};require;require_once;create_initial_taxonomies;register_taxonomy;wp_parse_args 1844
</example>
</div>

<div effect="fade-in-out">
<blurb>Convert to flamegraph:</blurb>
<example>
zcat /tmp/trace._.xt.gz
    | /tmp/FlameGraph/flamegraph.pl --width=1728 --height=20 --title="WordPress"
    > /tmp/derick/flamegraph.svg
</example>
<blurb>%https://github.com/brendangregg/FlameGraph%</blurb>
</div>

<div effect="fade-in">
<iframe align="center" filename="flamegraph.svg" width="1728" height="970"/>
</div>

</slide>