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Add OS-reported metrics for cached/buffered memory.

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This commit is contained in:
Jon Chambers
2020-10-11 13:32:11 -04:00
committed by Jon Chambers
parent bc7f2677b1
commit a9d0aa136d
3 changed files with 131 additions and 0 deletions
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85
service/src/test/java/org/whispersystems/textsecuregcm/metrics/OperatingSystemMemoryGaugeTest.java Normal file
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package org.whispersystems.textsecuregcm.metrics;
import junitparams.JUnitParamsRunner;
import junitparams.Parameters;
import org.junit.Test;
import org.junit.runner.RunWith;
import java.util.Map;
import static org.junit.Assert.*;
@RunWith(JUnitParamsRunner.class)
public class OperatingSystemMemoryGaugeTest {
private static final String MEMINFO =
"MemTotal: 16052208 kB\n" +
"MemFree: 4568468 kB\n" +
"MemAvailable: 7702848 kB\n" +
"Buffers: 636372 kB\n" +
"Cached: 5019116 kB\n" +
"SwapCached: 6692 kB\n" +
"Active: 7746436 kB\n" +
"Inactive: 2729876 kB\n" +
"Active(anon): 5580980 kB\n" +
"Inactive(anon): 1648108 kB\n" +
"Active(file): 2165456 kB\n" +
"Inactive(file): 1081768 kB\n" +
"Unevictable: 443948 kB\n" +
"Mlocked: 4924 kB\n" +
"SwapTotal: 1003516 kB\n" +
"SwapFree: 935932 kB\n" +
"Dirty: 28308 kB\n" +
"Writeback: 0 kB\n" +
"AnonPages: 5258396 kB\n" +
"Mapped: 1530740 kB\n" +
"Shmem: 2419340 kB\n" +
"KReclaimable: 229392 kB\n" +
"Slab: 408156 kB\n" +
"SReclaimable: 229392 kB\n" +
"SUnreclaim: 178764 kB\n" +
"KernelStack: 17360 kB\n" +
"PageTables: 50436 kB\n" +
"NFS_Unstable: 0 kB\n" +
"Bounce: 0 kB\n" +
"WritebackTmp: 0 kB\n" +
"CommitLimit: 9029620 kB\n" +
"Committed_AS: 16681884 kB\n" +
"VmallocTotal: 34359738367 kB\n" +
"VmallocUsed: 41944 kB\n" +
"VmallocChunk: 0 kB\n" +
"Percpu: 4240 kB\n" +
"HardwareCorrupted: 0 kB\n" +
"AnonHugePages: 0 kB\n" +
"ShmemHugePages: 0 kB\n" +
"ShmemPmdMapped: 0 kB\n" +
"FileHugePages: 0 kB\n" +
"FilePmdMapped: 0 kB\n" +
"CmaTotal: 0 kB\n" +
"CmaFree: 0 kB\n" +
"HugePages_Total: 0\n" +
"HugePages_Free: 7\n" +
"HugePages_Rsvd: 0\n" +
"HugePages_Surp: 0\n" +
"Hugepagesize: 2048 kB\n" +
"Hugetlb: 0 kB\n" +
"DirectMap4k: 481804 kB\n" +
"DirectMap2M: 14901248 kB\n" +
"DirectMap1G: 2097152 kB\n";
@Test
@Parameters(method = "argumentsForTestGetValue")
public void testGetValue(final String metricName, final long expectedValue) {
assertEquals(expectedValue, new OperatingSystemMemoryGauge(metricName).getValue(MEMINFO.lines()));
}
private static Object argumentsForTestGetValue() {
return new Object[] {
new Object[] { "MemTotal", 16052208L },
new Object[] { "Active(anon)", 5580980L },
new Object[] { "Committed_AS", 16681884L },
new Object[] { "HugePages_Free", 7L },
new Object[] { "NonsenseMetric", 0L }
};
}
}