Messages in this thread Patch in this message | | | From | jim.cromie@gmail ... | Subject | [PATCH 11/16] dynamic_debug: print ram usage by ddebug tables if verbose | Date | Sun, 25 Mar 2012 17:25:49 -0600 |
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From: Jim Cromie <jim.cromie@gmail.com>
Print ram usage of dynamic-debug so user knows cost of enabling CONFIG_DYNAMIC_DEBUG. Only counts cost of pr_debug in builtins, not those in loadable modules.
Signed-off-by: Jim Cromie <jim.cromie@gmail.com> --- lib/dynamic_debug.c | 7 ++++++- 1 files changed, 6 insertions(+), 1 deletions(-)
diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c index 5f0d31f..38bd4d66 100644 --- a/lib/dynamic_debug.c +++ b/lib/dynamic_debug.c @@ -970,7 +970,7 @@ static int __init dynamic_debug_init(void) const char *modname = NULL; char *cmdline; int ret = 0; - int n = 0; + int n = 0, entries = 0, modct = 0; if (__start___verbose == __stop___verbose) { pr_warn("_ddebug table is empty in a " @@ -981,7 +981,9 @@ static int __init dynamic_debug_init(void) modname = iter->modname; iter_start = iter; for (; iter < __stop___verbose; iter++) { + entries++; if (strcmp(modname, iter->modname)) { + modct++; ret = ddebug_add_module(iter_start, n, modname); if (ret) goto out_err; @@ -996,6 +998,9 @@ static int __init dynamic_debug_init(void) goto out_err; ddebug_init_success = 1; + vpr_info("%d modules, %d entries in ddebug tables, %d bytes used\n", + modct, entries, modct * sizeof(struct ddebug_table) + + __stop___verbose - __start___verbose); /* apply ddebug_query boot param, dont unload tables on err */ if (ddebug_setup_string[0] != '\0') { -- 1.7.7.6
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