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ProcessManager: Show some basic system memory stats below the process table.

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This really improves the feeling of "system overview" :^)
This commit is contained in:
Andreas Kling 2019-03-10 12:13:22 +01:00
parent 8017c1e17c
commit 37388b311f
9 changed files with 158 additions and 9 deletions
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18
Kernel/ProcFS.cpp
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@ -31,6 +31,7 @@ enum ProcFileType {
FI_Root_df,
FI_Root_kmalloc,
FI_Root_all,
FI_Root_memstat,
FI_Root_summary,
FI_Root_cpuinfo,
FI_Root_inodes,
@ -537,6 +538,22 @@ ByteBuffer procfs$summary(InodeIdentifier)
return builder.to_byte_buffer();
}
ByteBuffer procfs$memstat(InodeIdentifier)
{
InterruptDisabler disabler;
StringBuilder builder;
builder.appendf("%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()
);
return builder.to_byte_buffer();
}
ByteBuffer procfs$all(InodeIdentifier)
{
InterruptDisabler disabler;
@ -1112,6 +1129,7 @@ ProcFS::ProcFS()
m_entries[FI_Root_df] = { "df", FI_Root_df, procfs$df };
m_entries[FI_Root_kmalloc] = { "kmalloc", FI_Root_kmalloc, procfs$kmalloc };
m_entries[FI_Root_all] = { "all", FI_Root_all, procfs$all };
m_entries[FI_Root_memstat] = { "memstat", FI_Root_memstat, procfs$memstat };
m_entries[FI_Root_summary] = { "summary", FI_Root_summary, procfs$summary };
m_entries[FI_Root_cpuinfo] = { "cpuinfo", FI_Root_cpuinfo, procfs$cpuinfo};
m_entries[FI_Root_inodes] = { "inodes", FI_Root_inodes, procfs$inodes };