105 lines
2.8 KiB
C++
105 lines
2.8 KiB
C++
//===-- ProcfsTests.cpp ---------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "Procfs.h"
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#include "lldb/Host/linux/Support.h"
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#include "gmock/gmock.h"
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#include "gtest/gtest.h"
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using namespace lldb_private;
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using namespace process_linux;
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using namespace llvm;
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TEST(Perf, HardcodedLogicalCoreIDs) {
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Expected<std::vector<lldb::cpu_id_t>> cpu_ids =
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GetAvailableLogicalCoreIDs(R"(processor : 13
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vendor_id : GenuineIntel
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cpu family : 6
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model : 85
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model name : Intel(R) Xeon(R) Gold 6138 CPU @ 2.00GHz
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stepping : 4
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microcode : 0x2000065
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cpu MHz : 2886.370
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cache size : 28160 KB
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physical id : 1
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siblings : 40
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core id : 19
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cpu cores : 20
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apicid : 103
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initial apicid : 103
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fpu : yes
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fpu_exception : yes
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cpuid level : 22
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power management:
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processor : 24
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vendor_id : GenuineIntel
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cpu family : 6
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model : 85
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model name : Intel(R) Xeon(R) Gold 6138 CPU @ 2.00GHz
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stepping : 4
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microcode : 0x2000065
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cpu MHz : 2768.494
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cache size : 28160 KB
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physical id : 1
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siblings : 40
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core id : 20
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cpu cores : 20
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apicid : 105
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power management:
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processor : 35
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vendor_id : GenuineIntel
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cpu family : 6
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model : 85
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model name : Intel(R) Xeon(R) Gold 6138 CPU @ 2.00GHz
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stepping : 4
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microcode : 0x2000065
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cpu MHz : 2884.703
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cache size : 28160 KB
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physical id : 1
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siblings : 40
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core id : 24
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cpu cores : 20
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apicid : 113
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processor : 79
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vendor_id : GenuineIntel
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cpu family : 6
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model : 85
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model name : Intel(R) Xeon(R) Gold 6138 CPU @ 2.00GHz
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stepping : 4
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microcode : 0x2000065
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cpu MHz : 3073.955
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cache size : 28160 KB
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physical id : 1
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siblings : 40
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core id : 28
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cpu cores : 20
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apicid : 121
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power management:
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)");
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ASSERT_TRUE((bool)cpu_ids);
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ASSERT_THAT(*cpu_ids, ::testing::ElementsAre(13, 24, 35, 79));
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}
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TEST(Perf, RealLogicalCoreIDs) {
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// We first check we can read /proc/cpuinfo
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auto buffer_or_error = errorOrToExpected(getProcFile("cpuinfo"));
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if (!buffer_or_error)
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GTEST_SKIP() << toString(buffer_or_error.takeError());
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// At this point we shouldn't fail parsing the core ids
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Expected<ArrayRef<lldb::cpu_id_t>> cpu_ids = GetAvailableLogicalCoreIDs();
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ASSERT_TRUE((bool)cpu_ids);
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ASSERT_GT((int)cpu_ids->size(), 0) << "We must see at least one core";
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}
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