mirror of
https://github.com/varun-r-mallya/sysprof.git
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memprof: add memory profiling using LD_PRELOAD
This brings over some of the techniques from the old memprof design. Sysprof and memprof shared a lot of code, so it is pretty natural to bring back the same callgraph view based on memory allocations. This reuses the StackStash just like it did in memprof. While it would be nice to reuse some existing tools out there, the fit of memprof with sysprof is so naturally aligned, it's not really a big deal to bring back the LD_PRELOAD. The value really comes from seeing all this stuff together instead of multiple apps. There are plenty of things we can implement on top of this that we are not doing yet such as temporary allocations, cross-thread frees, graphing the heap, and graphing differences between the heap at to points in time. I'd like all of these things, given enough time to make them useful. This is still a bit slow though due to the global lock we take to access the writer. To improve the speed here we need to get rid of that lock and head towards a design that allows a thread to request a new writer from Sysprof and save it in TLS (to be destroyed when the thread exits).
This commit is contained in:
Christian Hergert
@ -64,86 +64,88 @@ G_BEGIN_DECLS
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typedef struct _SysprofCaptureReader SysprofCaptureReader;
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SYSPROF_AVAILABLE_IN_ALL
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SysprofCaptureReader *sysprof_capture_reader_new (const gchar *filename,
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GError **error);
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SysprofCaptureReader *sysprof_capture_reader_new (const gchar *filename,
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GError **error);
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SYSPROF_AVAILABLE_IN_ALL
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SysprofCaptureReader *sysprof_capture_reader_new_from_fd (int fd,
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GError **error);
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SysprofCaptureReader *sysprof_capture_reader_new_from_fd (int fd,
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GError **error);
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SYSPROF_AVAILABLE_IN_ALL
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SysprofCaptureReader *sysprof_capture_reader_copy (SysprofCaptureReader *self);
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SysprofCaptureReader *sysprof_capture_reader_copy (SysprofCaptureReader *self);
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SYSPROF_AVAILABLE_IN_ALL
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SysprofCaptureReader *sysprof_capture_reader_ref (SysprofCaptureReader *self);
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SysprofCaptureReader *sysprof_capture_reader_ref (SysprofCaptureReader *self);
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SYSPROF_AVAILABLE_IN_ALL
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void sysprof_capture_reader_unref (SysprofCaptureReader *self);
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void sysprof_capture_reader_unref (SysprofCaptureReader *self);
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SYSPROF_AVAILABLE_IN_ALL
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gint sysprof_capture_reader_get_byte_order (SysprofCaptureReader *self);
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gint sysprof_capture_reader_get_byte_order (SysprofCaptureReader *self);
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SYSPROF_AVAILABLE_IN_ALL
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const gchar *sysprof_capture_reader_get_filename (SysprofCaptureReader *self);
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const gchar *sysprof_capture_reader_get_filename (SysprofCaptureReader *self);
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SYSPROF_AVAILABLE_IN_ALL
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const gchar *sysprof_capture_reader_get_time (SysprofCaptureReader *self);
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const gchar *sysprof_capture_reader_get_time (SysprofCaptureReader *self);
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SYSPROF_AVAILABLE_IN_ALL
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gint64 sysprof_capture_reader_get_start_time (SysprofCaptureReader *self);
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gint64 sysprof_capture_reader_get_start_time (SysprofCaptureReader *self);
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SYSPROF_AVAILABLE_IN_ALL
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gint64 sysprof_capture_reader_get_end_time (SysprofCaptureReader *self);
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gint64 sysprof_capture_reader_get_end_time (SysprofCaptureReader *self);
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SYSPROF_AVAILABLE_IN_ALL
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gboolean sysprof_capture_reader_skip (SysprofCaptureReader *self);
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gboolean sysprof_capture_reader_skip (SysprofCaptureReader *self);
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SYSPROF_AVAILABLE_IN_ALL
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gboolean sysprof_capture_reader_peek_type (SysprofCaptureReader *self,
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SysprofCaptureFrameType *type);
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gboolean sysprof_capture_reader_peek_type (SysprofCaptureReader *self,
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SysprofCaptureFrameType *type);
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SYSPROF_AVAILABLE_IN_ALL
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gboolean sysprof_capture_reader_peek_frame (SysprofCaptureReader *self,
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SysprofCaptureFrame *frame);
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gboolean sysprof_capture_reader_peek_frame (SysprofCaptureReader *self,
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SysprofCaptureFrame *frame);
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SYSPROF_AVAILABLE_IN_ALL
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const SysprofCaptureLog *sysprof_capture_reader_read_log (SysprofCaptureReader *self);
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const SysprofCaptureLog *sysprof_capture_reader_read_log (SysprofCaptureReader *self);
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SYSPROF_AVAILABLE_IN_ALL
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const SysprofCaptureMap *sysprof_capture_reader_read_map (SysprofCaptureReader *self);
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const SysprofCaptureMap *sysprof_capture_reader_read_map (SysprofCaptureReader *self);
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SYSPROF_AVAILABLE_IN_ALL
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const SysprofCaptureMark *sysprof_capture_reader_read_mark (SysprofCaptureReader *self);
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const SysprofCaptureMark *sysprof_capture_reader_read_mark (SysprofCaptureReader *self);
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SYSPROF_AVAILABLE_IN_ALL
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const SysprofCaptureMetadata *sysprof_capture_reader_read_metadata (SysprofCaptureReader *self);
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const SysprofCaptureMetadata *sysprof_capture_reader_read_metadata (SysprofCaptureReader *self);
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SYSPROF_AVAILABLE_IN_ALL
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const SysprofCaptureExit *sysprof_capture_reader_read_exit (SysprofCaptureReader *self);
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const SysprofCaptureExit *sysprof_capture_reader_read_exit (SysprofCaptureReader *self);
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SYSPROF_AVAILABLE_IN_ALL
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const SysprofCaptureFork *sysprof_capture_reader_read_fork (SysprofCaptureReader *self);
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const SysprofCaptureFork *sysprof_capture_reader_read_fork (SysprofCaptureReader *self);
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SYSPROF_AVAILABLE_IN_ALL
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const SysprofCaptureTimestamp *sysprof_capture_reader_read_timestamp (SysprofCaptureReader *self);
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const SysprofCaptureTimestamp *sysprof_capture_reader_read_timestamp (SysprofCaptureReader *self);
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SYSPROF_AVAILABLE_IN_ALL
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const SysprofCaptureProcess *sysprof_capture_reader_read_process (SysprofCaptureReader *self);
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const SysprofCaptureProcess *sysprof_capture_reader_read_process (SysprofCaptureReader *self);
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SYSPROF_AVAILABLE_IN_ALL
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const SysprofCaptureSample *sysprof_capture_reader_read_sample (SysprofCaptureReader *self);
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const SysprofCaptureSample *sysprof_capture_reader_read_sample (SysprofCaptureReader *self);
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SYSPROF_AVAILABLE_IN_ALL
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GHashTable *sysprof_capture_reader_read_jitmap (SysprofCaptureReader *self);
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GHashTable *sysprof_capture_reader_read_jitmap (SysprofCaptureReader *self);
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SYSPROF_AVAILABLE_IN_ALL
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const SysprofCaptureCounterDefine *sysprof_capture_reader_read_counter_define (SysprofCaptureReader *self);
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const SysprofCaptureCounterDefine *sysprof_capture_reader_read_counter_define (SysprofCaptureReader *self);
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SYSPROF_AVAILABLE_IN_ALL
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const SysprofCaptureCounterSet *sysprof_capture_reader_read_counter_set (SysprofCaptureReader *self);
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const SysprofCaptureCounterSet *sysprof_capture_reader_read_counter_set (SysprofCaptureReader *self);
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SYSPROF_AVAILABLE_IN_ALL
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const SysprofCaptureFileChunk *sysprof_capture_reader_read_file (SysprofCaptureReader *self);
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const SysprofCaptureFileChunk *sysprof_capture_reader_read_file (SysprofCaptureReader *self);
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SYSPROF_AVAILABLE_IN_3_36
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const SysprofCaptureAllocation *sysprof_capture_reader_read_allocation (SysprofCaptureReader *self);
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SYSPROF_AVAILABLE_IN_ALL
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gboolean sysprof_capture_reader_reset (SysprofCaptureReader *self);
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gboolean sysprof_capture_reader_reset (SysprofCaptureReader *self);
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SYSPROF_AVAILABLE_IN_ALL
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gboolean sysprof_capture_reader_splice (SysprofCaptureReader *self,
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SysprofCaptureWriter *dest,
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GError **error);
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gboolean sysprof_capture_reader_splice (SysprofCaptureReader *self,
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SysprofCaptureWriter *dest,
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GError **error);
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SYSPROF_AVAILABLE_IN_ALL
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gboolean sysprof_capture_reader_save_as (SysprofCaptureReader *self,
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const gchar *filename,
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GError **error);
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gboolean sysprof_capture_reader_save_as (SysprofCaptureReader *self,
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const gchar *filename,
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GError **error);
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SYSPROF_AVAILABLE_IN_ALL
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gboolean sysprof_capture_reader_get_stat (SysprofCaptureReader *self,
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SysprofCaptureStat *st_buf);
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gboolean sysprof_capture_reader_get_stat (SysprofCaptureReader *self,
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SysprofCaptureStat *st_buf);
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SYSPROF_AVAILABLE_IN_ALL
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void sysprof_capture_reader_set_stat (SysprofCaptureReader *self,
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const SysprofCaptureStat *st_buf);
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void sysprof_capture_reader_set_stat (SysprofCaptureReader *self,
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const SysprofCaptureStat *st_buf);
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SYSPROF_AVAILABLE_IN_ALL
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const SysprofCaptureFileChunk *sysprof_capture_reader_find_file (SysprofCaptureReader *self,
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const gchar *path);
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const SysprofCaptureFileChunk *sysprof_capture_reader_find_file (SysprofCaptureReader *self,
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const gchar *path);
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SYSPROF_AVAILABLE_IN_ALL
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gchar **sysprof_capture_reader_list_files (SysprofCaptureReader *self);
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gchar **sysprof_capture_reader_list_files (SysprofCaptureReader *self);
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SYSPROF_AVAILABLE_IN_ALL
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gboolean sysprof_capture_reader_read_file_fd (SysprofCaptureReader *self,
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const gchar *path,
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gint fd);
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gboolean sysprof_capture_reader_read_file_fd (SysprofCaptureReader *self,
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const gchar *path,
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gint fd);
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G_DEFINE_AUTOPTR_CLEANUP_FUNC (SysprofCaptureReader, sysprof_capture_reader_unref)
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