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lscpu: Show size of L1 data/instruction, L2, and L3 CPU caches

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Linus Groh 2022-05-28 21:23:34 +01:00 • committed by Andreas Kling
parent 20e2e39fcc
commit bf5caf254f
1 changed files with 21 additions and 1 deletions
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22
Userland/Utilities/lscpu.cpp
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@ -1,5 +1,6 @@
/* /*
* Copyright (c) 2022, Undefine <undefine@undefine.pl>. * Copyright (c) 2022, Undefine <undefine@undefine.pl>
* Copyright (c) 2022, Linus Groh <linusg@serenityos.org>
* *
* SPDX-License-Identifier: BSD-2-Clause * SPDX-License-Identifier: BSD-2-Clause
*/ */
@ -7,10 +8,18 @@
#include <AK/Format.h> #include <AK/Format.h>
#include <AK/JsonArray.h> #include <AK/JsonArray.h>
#include <AK/JsonObject.h> #include <AK/JsonObject.h>
#include <AK/NumberFormat.h>
#include <LibCore/File.h> #include <LibCore/File.h>
#include <LibCore/System.h> #include <LibCore/System.h>
#include <LibMain/Main.h> #include <LibMain/Main.h>
static void print_cache_info(StringView description, JsonObject const& cache_object)
{
outln("\t{}:", description);
outln("\t\tSize: {}", human_readable_size(cache_object.get("size").as_u32()));
outln("\t\tLine size: {}", human_readable_size(cache_object.get("line_size").as_u32()));
};
static void print_cpu_info(JsonObject const& value) static void print_cpu_info(JsonObject const& value)
{ {
outln("CPU {}:", value.get("processor").as_u32()); outln("CPU {}:", value.get("processor").as_u32());
@ -22,6 +31,17 @@ static void print_cpu_info(JsonObject const& value)
outln("\tModel: {}", value.get("model").as_u32()); outln("\tModel: {}", value.get("model").as_u32());
outln("\tStepping: {}", value.get("stepping").as_u32()); outln("\tStepping: {}", value.get("stepping").as_u32());
outln("\tType: {}", value.get("type").as_u32()); outln("\tType: {}", value.get("type").as_u32());
auto& caches = value.get("caches").as_object();
if (caches.has("l1_data"))
print_cache_info("L1 data cache", caches.get("l1_data").as_object());
if (caches.has("l1_instruction"))
print_cache_info("L1 instruction cache", caches.get("l1_instruction").as_object());
if (caches.has("l2"))
print_cache_info("L2 cache", caches.get("l2").as_object());
if (caches.has("l3"))
print_cache_info("L3 cache", caches.get("l3").as_object());
out("\tFeatures: "); out("\tFeatures: ");
auto& features = value.get("features").as_array(); auto& features = value.get("features").as_array();