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Kernel+ProcessManager: Expose the number of kmalloc/kfree calls.

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This will be very helpful in tracking down unwanted kmalloc traffic. :^)
This commit is contained in:
Andreas Kling 2019-04-15 19:43:12 +02:00
parent 13041f894f
commit e9c0f4567d
5 changed files with 25 additions and 8 deletions
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7
Kernel/FileSystem/ProcFS.cpp
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@ -8,6 +8,7 @@
#include "Console.h"
#include "Scheduler.h"
#include <Kernel/PCI.h>
#include <Kernel/kmalloc.h>
#include <AK/StringBuilder.h>
#include <LibC/errno_numbers.h>
@ -558,14 +559,16 @@ ByteBuffer procfs$memstat(InodeIdentifier)
{
InterruptDisabler disabler;
StringBuilder builder;
builder.appendf("%u,%u,%u,%u,%u,%u,%u\n",
builder.appendf("%u,%u,%u,%u,%u,%u,%u,%u,%u\n",
kmalloc_sum_eternal,
sum_alloc,
sum_free,
MM.user_physical_pages_in_existence() - MM.m_free_physical_pages.size(),
MM.m_free_physical_pages.size(),
MM.super_physical_pages_in_existence() - MM.m_free_supervisor_physical_pages.size(),
MM.m_free_supervisor_physical_pages.size()
MM.m_free_supervisor_physical_pages.size(),
g_kmalloc_call_count,
g_kfree_call_count
);
return builder.to_byte_buffer();
}