261e6898f1
Co-authored-by: graphite-app[bot] <96075541+graphite-app[bot]@users.noreply.github.com> GitOrigin-RevId: 52bac11b24a517fa7f1f7d63600e3df7632b0b33
71 lines
2.1 KiB
JavaScript
71 lines
2.1 KiB
JavaScript
/**
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* Verifying the various ways to set the WiredTiger cache size. The cache size can be set in GB
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* or as a percentage of the physical RAM available.
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*
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* @tags: [requires_wiredtiger]
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*
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*/
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import {
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isLinux,
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} from "jstests/libs/os_helpers.js";
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import {ReplSetTest} from "jstests/libs/replsettest.js";
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if (!isLinux()) {
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quit();
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}
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const bytesPerKB = 1024;
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const bytesPerMB = bytesPerKB * 1024;
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const bytesPerGB = bytesPerMB * 1024;
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const totalCacheKB = Number(
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cat("/proc/meminfo").split("\n").filter((str) => str.includes("MemTotal"))[0].split(/\s+/)[1]);
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jsTestLog("Total process RAM available: " + totalCacheKB);
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function runTest(expectedCacheSizeBytes, serverConfig, fuzzyGBCheck = false) {
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let rst = new ReplSetTest({nodes: 1});
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rst.startSet(serverConfig);
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rst.initiate();
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let primary = rst.getPrimary();
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let actualCacheSizeBytes = assert.commandWorked(primary.adminCommand({serverStatus: 1}))
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.wiredTiger.cache["maximum bytes configured"];
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// Verify storage engine cache size in effect
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if (fuzzyGBCheck) {
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assert.eq(Math.round(expectedCacheSizeBytes / bytesPerGB),
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Math.round(actualCacheSizeBytes / bytesPerGB));
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} else {
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assert.eq(expectedCacheSizeBytes, actualCacheSizeBytes);
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}
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rst.stopSet();
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}
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TestData.storageEngineCacheSizePct = "";
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TestData.storageEngineCacheSizeGB = "";
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//
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// Byte-based tests.
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//
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TestData.storageEngineCacheSizeGB = "0.4";
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runTest(0.4 * bytesPerGB, {}, true);
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TestData.storageEngineCacheSizeGB = "";
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runTest(0.3 * bytesPerGB, {wiredTigerCacheSizeGB: "0.3"}, true);
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// Test upper limit
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runTest(10 * 1000 * 1000 * bytesPerMB, {wiredTigerCacheSizeGB: "10000"}, false);
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// Test default value
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runTest(Math.max(((totalCacheKB / bytesPerKB) - 1024) * 0.5, 256.0) * bytesPerMB, {}, true);
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//
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// Percentage-based tests.
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//
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TestData.storageEngineCacheSizePct = "0.01";
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runTest(0.01 * totalCacheKB * bytesPerKB, {}, true);
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TestData.storageEngineCacheSizePct = "";
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runTest(0.03 * totalCacheKB * bytesPerKB, {wiredTigerCacheSizePct: "0.03"}, true);
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// Test lower limit
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runTest(256 * bytesPerMB, {wiredTigerCacheSizePct: "0.00000001"}, false); |