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libsysprof: add flag to ignore kernel processes

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This commit is contained in:
Christian Hergert
2023-08-28 14:57:40 -07:00
parent 8f26c0037d
commit c4e96bb314
2 changed files with 13 additions and 9 deletions
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21
src/libsysprof/sysprof-callgraph.c
View File

@ -345,12 +345,12 @@ _sysprof_callgraph_categorize (SysprofCallgraph *self,
static void static void
sysprof_callgraph_add_traceable (SysprofCallgraph *self, sysprof_callgraph_add_traceable (SysprofCallgraph *self,
SysprofDocumentTraceable *traceable, SysprofDocumentTraceable *traceable,
guint list_model_index, guint list_model_index)
gboolean merge_similar_processes)
{ {
SysprofAddressContext final_context; SysprofAddressContext final_context;
SysprofCallgraphNode *node; SysprofCallgraphNode *node;
SysprofSymbol **symbols; SysprofSymbol **symbols;
SysprofSymbol *process_symbol;
guint stack_depth; guint stack_depth;
guint n_symbols; guint n_symbols;
int pid; int pid;
@ -365,9 +365,15 @@ sysprof_callgraph_add_traceable (SysprofCallgraph *self,
if (pid == 0 && (self->flags & SYSPROF_CALLGRAPH_FLAGS_IGNORE_PROCESS_0) != 0) if (pid == 0 && (self->flags & SYSPROF_CALLGRAPH_FLAGS_IGNORE_PROCESS_0) != 0)
return; return;
tid = sysprof_document_traceable_get_thread_id (traceable); /* Ignore kernel processes if requested */
stack_depth = sysprof_document_traceable_get_stack_depth (traceable); process_symbol = _sysprof_document_process_symbol (self->document, pid, !!(self->flags & SYSPROF_CALLGRAPH_FLAGS_MERGE_SIMILAR_PROCESSES));
if (process_symbol->is_kernel_process && (self->flags & SYSPROF_CALLGRAPH_FLAGS_IGNORE_KERNEL_PROCESSES))
return;
tid = sysprof_document_traceable_get_thread_id (traceable);
/* Early ignore anything with empty or too large a stack */
stack_depth = sysprof_document_traceable_get_stack_depth (traceable);
if (stack_depth == 0 || stack_depth > MAX_STACK_DEPTH) if (stack_depth == 0 || stack_depth > MAX_STACK_DEPTH)
return; return;
@ -422,7 +428,7 @@ sysprof_callgraph_add_traceable (SysprofCallgraph *self,
if ((self->flags & SYSPROF_CALLGRAPH_FLAGS_INCLUDE_THREADS) != 0) if ((self->flags & SYSPROF_CALLGRAPH_FLAGS_INCLUDE_THREADS) != 0)
symbols[n_symbols++] = _sysprof_document_thread_symbol (self->document, pid, tid); symbols[n_symbols++] = _sysprof_document_thread_symbol (self->document, pid, tid);
symbols[n_symbols++] = _sysprof_document_process_symbol (self->document, pid, merge_similar_processes); symbols[n_symbols++] = process_symbol;
symbols[n_symbols++] = everything; symbols[n_symbols++] = everything;
if (n_symbols > self->height) if (n_symbols > self->height)
@ -521,7 +527,6 @@ sysprof_callgraph_new_worker (GTask *task,
GCancellable *cancellable) GCancellable *cancellable)
{ {
SysprofCallgraph *self = task_data; SysprofCallgraph *self = task_data;
gboolean merge_similar_processes;
guint n_items; guint n_items;
g_assert (G_IS_TASK (task)); g_assert (G_IS_TASK (task));
@ -531,8 +536,6 @@ sysprof_callgraph_new_worker (GTask *task,
n_items = g_list_model_get_n_items (self->traceables); n_items = g_list_model_get_n_items (self->traceables);
merge_similar_processes = (self->flags & SYSPROF_CALLGRAPH_FLAGS_MERGE_SIMILAR_PROCESSES) != 0;
for (guint i = 0; i < n_items; i++) for (guint i = 0; i < n_items; i++)
{ {
g_autoptr(SysprofDocumentTraceable) traceable = g_list_model_get_item (self->traceables, i); g_autoptr(SysprofDocumentTraceable) traceable = g_list_model_get_item (self->traceables, i);
@ -544,7 +547,7 @@ sysprof_callgraph_new_worker (GTask *task,
if (traceable == NULL) if (traceable == NULL)
break; break;
sysprof_callgraph_add_traceable (self, traceable, i, merge_similar_processes); sysprof_callgraph_add_traceable (self, traceable, i);
} }
/* Sort callgraph nodes alphabetically so that we can use them in the /* Sort callgraph nodes alphabetically so that we can use them in the

1
src/libsysprof/sysprof-callgraph.h
View File

@ -101,6 +101,7 @@ typedef enum _SysprofCallgraphFlags
SYSPROF_CALLGRAPH_FLAGS_IGNORE_PROCESS_0 = 1 << 5, SYSPROF_CALLGRAPH_FLAGS_IGNORE_PROCESS_0 = 1 << 5,
SYSPROF_CALLGRAPH_FLAGS_LEFT_HEAVY = 1 << 6, SYSPROF_CALLGRAPH_FLAGS_LEFT_HEAVY = 1 << 6,
SYSPROF_CALLGRAPH_FLAGS_MERGE_SIMILAR_PROCESSES = 1 << 7, SYSPROF_CALLGRAPH_FLAGS_MERGE_SIMILAR_PROCESSES = 1 << 7,
SYSPROF_CALLGRAPH_FLAGS_IGNORE_KERNEL_PROCESSES = 1 << 8,
} SysprofCallgraphFlags; } SysprofCallgraphFlags;
SYSPROF_AVAILABLE_IN_ALL SYSPROF_AVAILABLE_IN_ALL