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libsysprof-analyze: use separate cache for kernel symbols

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Additionally this reduces some GHashTable lookup costs by doing it once
for the process-info per-traceable rather than one per instruction pointer
per traceable.
This commit is contained in:
Christian Hergert
2023-05-15 14:30:06 -07:00
parent 909228174e
commit a90b9a2fc7
3 changed files with 55 additions and 50 deletions
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4
src/libsysprof-analyze/sysprof-document.c
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@ -802,6 +802,7 @@ sysprof_document_symbolize_traceable (SysprofDocument *self,
guint n_symbols)
{
SysprofAddressContext last_context = SYSPROF_ADDRESS_CONTEXT_NONE;
const SysprofProcessInfo *process_info;
SysprofAddress *addresses;
guint n_addresses;
int pid;
@ -813,6 +814,7 @@ sysprof_document_symbolize_traceable (SysprofDocument *self,
return 0;
pid = sysprof_document_frame_get_pid (SYSPROF_DOCUMENT_FRAME (traceable));
process_info = g_hash_table_lookup (self->pid_to_process_info, GINT_TO_POINTER (pid));
addresses = g_alloca (sizeof (SysprofAddress) * n_symbols);
n_addresses = sysprof_document_traceable_get_stack_addresses (traceable, addresses, n_symbols);
@ -820,7 +822,7 @@ sysprof_document_symbolize_traceable (SysprofDocument *self,
{
SysprofAddressContext context;
symbols[i] = _sysprof_document_symbols_lookup (self->symbols, pid, last_context, addresses[i]);
symbols[i] = _sysprof_document_symbols_lookup (self->symbols, process_info, last_context, addresses[i]);
if (sysprof_address_is_context_switch (addresses[i], &context))
last_context = context;