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Commit efb73a96 authored by Joel Fernandes's avatar Joel Fernandes
Browse files

atrace: Set saved_cmdline_size to 8192 



This increases the size of the table tracking comms and pids and
prevents overwriting them easily.

Bug: 38167231

Change-Id: I69b9000e4f9d0c2c7969efd38e02d8c1bffdad5c
Signed-off-by: default avatarJoel Fernandes <joelaf@google.com>
(cherry picked from commit ed80bd04)
parent eb30998a

cmds/atrace/atrace.cpp

+10 −0
Original line number Diff line number Diff line
@@ -215,6 +215,9 @@ static const char* k_traceClockPath = 
static const char* k_traceBufferSizePath =

    "buffer_size_kb";



static const char* k_traceCmdlineSizePath =

    "saved_cmdlines_size";



static const char* k_tracingOverwriteEnablePath =

    "options/overwrite";
@@ -437,6 +440,12 @@ static bool setTraceBufferSizeKB(int size) 
    return writeStr(k_traceBufferSizePath, str);

}



// Set the default size of cmdline hashtable

static bool setCmdlineSize()

{

    return writeStr(k_traceCmdlineSizePath, "8192");

}



// Set the clock to the best available option while tracing. Use 'boot' if it's

// available; otherwise, use 'mono'. If neither are available use 'global'.

// Any write to the trace_clock sysfs file will reset the buffer, so only
@@ -757,6 +766,7 @@ static bool setUpTrace() 
    ok &= setCategoriesEnableFromFile(g_categoriesFile);

    ok &= setTraceOverwriteEnable(g_traceOverwrite);

    ok &= setTraceBufferSizeKB(g_traceBufferSizeKB);

    ok &= setCmdlineSize();

    ok &= setClock();

    ok &= setPrintTgidEnableIfPresent(true);

    ok &= setKernelTraceFuncs(g_kernelTraceFuncs);