varun-r-mallya/sysprof
1
0
Fork 0
mirror of https://github.com/varun-r-mallya/sysprof.git synced 2025-12-31 20:36:25 +00:00
Code Issues Packages Projects Releases Wiki Activity

sysprof: add support for left-heavy sorting of flamegraph

Browse Source 
Related #93
This commit is contained in:
Christian Hergert
2023-08-27 13:44:46 -07:00
parent 1f1d083425
commit 5c9c20621e
9 changed files with 98 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

28
src/libsysprof/sysprof-callgraph.c
View File

@ -459,8 +459,25 @@ sort_by_symbol_name (gconstpointer a,
return g_utf8_collate (node_a->summary->symbol->name, node_b->summary->symbol->name);
}
static int
sort_by_count (gconstpointer a,
gconstpointer b)
{
const SysprofCallgraphNode *node_a = *(const SysprofCallgraphNode * const *)a;
const SysprofCallgraphNode *node_b = *(const SysprofCallgraphNode * const *)b;
if (node_a->count > node_b->count)
return -1;
if (node_a->count < node_b->count)
return 1;
return 0;
}
static void
sort_children (SysprofCallgraphNode *node)
sort_children (SysprofCallgraphNode *node,
SysprofCallgraphFlags flags)
{
SysprofCallgraphNode **children;
guint n_children = 0;
@ -471,7 +488,7 @@ sort_children (SysprofCallgraphNode *node)
for (SysprofCallgraphNode *child = node->children; child; child = child->next)
{
sort_children (child);
sort_children (child, flags);
n_children++;
}
@ -480,7 +497,10 @@ sort_children (SysprofCallgraphNode *node)
children[i++] = child;
children[i] = NULL;
qsort (children, n_children, sizeof (SysprofCallgraphNode *), sort_by_symbol_name);
if (flags & SYSPROF_CALLGRAPH_FLAGS_LEFT_HEAVY)
qsort (children, n_children, sizeof (SysprofCallgraphNode *), sort_by_count);
else
qsort (children, n_children, sizeof (SysprofCallgraphNode *), sort_by_symbol_name);
node->children = children[0];
node->children->prev = NULL;
@ -526,7 +546,7 @@ sysprof_callgraph_new_worker (GTask *task,
/* Sort callgraph nodes alphabetically so that we can use them in the
* flamegraph without any further processing.
*/
sort_children (&self->root);
sort_children (&self->root, self->flags);
g_task_return_pointer (task, g_object_ref (self), g_object_unref);
}