dumpstate: print DMA-BUF sysfs stats in bugreport
Dump DMA-BUF per-buffer/per-exporter/per-device stats in bugreport.
These statistics will be helpful to analyze memory-related issues like Low
Memory Kills and ANR events.
Measured over 5 cycles, the addition of the statistics appear to
approximately increase the size of bugreport.zip by 26KB.
Bug: 167709539
Test: adb shell am bug-report
Change-Id: I2aceef79c4ec97ad400cb250c0075004fe50cdc6
diff --git a/cmds/dumpstate/dumpstate.cpp b/cmds/dumpstate/dumpstate.cpp
index 9c5b883..7d41a2e 100644
--- a/cmds/dumpstate/dumpstate.cpp
+++ b/cmds/dumpstate/dumpstate.cpp
@@ -1823,10 +1823,8 @@
RunCommand("IOTOP", {"iotop", "-n", "1", "-m", "100"});
// Gather shared memory buffer info if the product implements it
- struct stat st;
- if (!stat("/product/bin/dmabuf_dump", &st)) {
- RunCommand("Dmabuf dump", {"/product/bin/dmabuf_dump"});
- }
+ RunCommand("Dmabuf dump", {"dmabuf_dump"});
+ RunCommand("Dmabuf per-buffer/per-exporter/per-device stats", {"dmabuf_dump", "-b"});
DumpFile("PSI cpu", "/proc/pressure/cpu");
DumpFile("PSI memory", "/proc/pressure/memory");