commit 78f2c86235d5882a8dc84c85a1c1864062e5f3af
author Felipe Leme <felipeal@google.com> Mon Dec 21 09:55:22 2015 -0800
committer Felipe Leme <felipeal@google.com> Tue Jan 05 13:03:07 2016 -0800
tree 95bf3ed134a2967aecfccc8c9fe2938a1c1e5e8e
parent 3c09d20086d74b80d28b8046d2058b2bdbb79b4f

Prints out how long it takes to generate each section.

It's done using a DurationReporter helper class that prints starts
counting when constructed and prints the duration when destructed.

Typical usage:

function do_something() {
    DurationReporter duration_reporter(title);
    // Do something.
}

Change-Id: I87134d9a1b003300384376c242a3c034a46244c4

cmds/dumpstate/dumpstate.cpp

diff --git a/cmds/dumpstate/dumpstate.cpp b/cmds/dumpstate/dumpstate.cpp
index a08014d..ec1fd60 100644
--- a/cmds/dumpstate/dumpstate.cpp
+++ b/cmds/dumpstate/dumpstate.cpp
@@ -52,6 +52,8 @@
 static char cmdline_buf[16384] = "(unknown)";
 static const char *dump_traces_path = NULL;
 
+static char build_type[PROPERTY_VALUE_MAX];
+
 #define PSTORE_LAST_KMSG "/sys/fs/pstore/console-ramoops"
 
 #define RAFT_DIR "/data/misc/raft/"
@@ -270,13 +272,11 @@
 /* End copy from system/core/logd/LogBuffer.cpp */
 
 /* dumps the current system state to stdout */
-static void dumpstate(const std::string& screenshot_path) {
-    unsigned long timeout;
+static void print_header() {
     time_t now = time(NULL);
     char build[PROPERTY_VALUE_MAX], fingerprint[PROPERTY_VALUE_MAX];
     char radio[PROPERTY_VALUE_MAX], bootloader[PROPERTY_VALUE_MAX];
     char network[PROPERTY_VALUE_MAX], date[80];
-    char build_type[PROPERTY_VALUE_MAX];
 
     property_get("ro.build.display.id", build, "(unknown)");
     property_get("ro.build.fingerprint", fingerprint, "(unknown)");
@@ -301,6 +301,11 @@
     dump_file(NULL, "/proc/version");
     printf("Command line: %s\n", strtok(cmdline_buf, "\n"));
     printf("\n");
+}
+
+static void dumpstate(const std::string& screenshot_path) {
+    std::unique_ptr<DurationReporter> duration_reporter(new DurationReporter("DUMPSTATE"));
+    unsigned long timeout;
 
     dump_dev_files("TRUSTY VERSION", "/sys/bus/platform/drivers/trusty", "trusty_version");
     run_command("UPTIME", 10, "uptime", NULL);
@@ -808,6 +813,8 @@
         }
     }
 
+    print_header();
+
     /* open the vibrator before dropping root */
     std::unique_ptr<FILE, int(*)(FILE*)> vibrator(NULL, fclose);
     if (do_vibrate) {