@datadog/pprof - npm Package Compare versions

Comparing version 1.1.1 to 2.0.0-pre-6af96b0

out/src/cpu-profiler.d.ts

@@ -18,3 +18,3 @@ /**
 export default class CpuProfiler extends NativeCpuProfiler {
-    profile(): import("../../proto/profile").perftools.profiles.IProfile | undefined;
+    profile(): import("pprof-format").Profile | undefined;
 }

out/src/cpu-profiler.js

@@ -82,10 +82,15 @@ "use strict";
             }
-            targetNode.cpuTime += sample.cpuTime;
-            targetNode.hitCount++;
-            if (sample.labels) {
-                targetNode.labelSets.push(sample.labels);
+            if (sample.labels && Object.keys(sample.labels).length > 0) {
+                targetNode.labelSets.push({
+                    labels: sample.labels,
+                    cpuTime: sample.cpuTime,
+                });
             }
+            else {
+                targetNode.cpuTime += sample.cpuTime;
+                targetNode.hitCount++;
+            }
             targetNode = timeProfile.topDownRoot;
         }
-        const intervalMicros = 1000 / this.frequency;
+        const intervalMicros = 1000000 / this.frequency;
         return (0, profile_serializer_1.serializeCpuProfile)(timeProfile, intervalMicros);
@@ -92,0 +97,0 @@ }

out/src/heap-profiler.d.ts

@@ -16,3 +16,3 @@ /**
  */
-import { perftools } from '../../proto/profile';
+import { Profile } from 'pprof-format';
 import { SourceMapper } from './sourcemapper/sourcemapper';
@@ -28,3 +28,3 @@ import { AllocationProfileNode } from './v8-types';
  */
-export declare function profile(ignoreSamplePath?: string, sourceMapper?: SourceMapper): perftools.profiles.IProfile;
+export declare function profile(ignoreSamplePath?: string, sourceMapper?: SourceMapper): Profile;
 /**
@@ -31,0 +31,0 @@ * Starts heap profiling. If heap profiling has already been started with

out/src/profile-encoder.d.ts

@@ -17,4 +17,4 @@ /**
 /// <reference types="node" />
-import { perftools } from '../../proto/profile';
-export declare function encode(profile: perftools.profiles.IProfile): Promise<Buffer>;
-export declare function encodeSync(profile: perftools.profiles.IProfile): Buffer;
+import { Profile } from 'pprof-format';
+export declare function encode(profile: Profile): Promise<Buffer>;
+export declare function encodeSync(profile: Profile): Buffer;

out/src/profile-encoder.js

@@ -21,14 +21,11 @@ "use strict";
 const zlib_1 = require("zlib");
-const profile_1 = require("../../proto/profile");
 const gzipPromise = pify(zlib_1.gzip);
 async function encode(profile) {
-    const buffer = profile_1.perftools.profiles.Profile.encode(profile).finish();
-    return gzipPromise(buffer);
+    return gzipPromise(profile.encode());
 }
 exports.encode = encode;
 function encodeSync(profile) {
-    const buffer = profile_1.perftools.profiles.Profile.encode(profile).finish();
-    return (0, zlib_1.gzipSync)(buffer);
+    return (0, zlib_1.gzipSync)(profile.encode());
 }
 exports.encodeSync = encodeSync;
 //# sourceMappingURL=profile-encoder.js.map

out/src/profile-serializer.d.ts

@@ -16,3 +16,3 @@ /**
  */
-import { perftools } from '../../proto/profile';
+import { Profile } from 'pprof-format';
 import { SourceMapper } from './sourcemapper/sourcemapper';
@@ -27,3 +27,3 @@ import { AllocationProfileNode, CpuProfile, TimeProfile } from './v8-types';
  */
-export declare function serializeTimeProfile(prof: TimeProfile, intervalMicros: number, sourceMapper?: SourceMapper): perftools.profiles.IProfile;
+export declare function serializeTimeProfile(prof: TimeProfile, intervalMicros: number, sourceMapper?: SourceMapper, recomputeSamplingInterval?: boolean): Profile;
 /**
@@ -36,3 +36,3 @@ * Converts cpu profile into into a profile proto.
  */
-export declare function serializeCpuProfile(prof: CpuProfile, intervalMicros: number, sourceMapper?: SourceMapper): perftools.profiles.IProfile;
+export declare function serializeCpuProfile(prof: CpuProfile, intervalMicros: number, sourceMapper?: SourceMapper): Profile;
 /**
@@ -48,2 +48,2 @@ * Converts v8 heap profile into into a profile proto.
  */
-export declare function serializeHeapProfile(prof: AllocationProfileNode, startTimeNanos: number, intervalBytes: number, ignoreSamplesPath?: string, sourceMapper?: SourceMapper): perftools.profiles.IProfile;
+export declare function serializeHeapProfile(prof: AllocationProfileNode, startTimeNanos: number, intervalBytes: number, ignoreSamplesPath?: string, sourceMapper?: SourceMapper): Profile;

out/src/profile-serializer.js

@@ -19,3 +19,3 @@ "use strict";
 exports.serializeHeapProfile = exports.serializeCpuProfile = exports.serializeTimeProfile = void 0;
-const profile_1 = require("../../proto/profile");
+const pprof_format_1 = require("pprof-format");
 function isGeneratedLocation(location) {
@@ -27,26 +27,2 @@ return (location.column !== undefined &&
 /**
- * Used to build string table and access strings and their ids within the table
- * when serializing a profile.
- */
-class StringTable {
-    constructor() {
-        this.strings = [];
-        this.stringsMap = new Map();
-        this.getIndexOrAdd('');
-    }
-    /**
-     * @return index of str within the table. Also adds str to string table if
-     * str is not in the table already.
-     */
-    getIndexOrAdd(str) {
-        let idx = this.stringsMap.get(str);
-        if (idx !== undefined) {
-            return idx;
-        }
-        idx = this.strings.push(str) - 1;
-        this.stringsMap.set(str, idx);
-        return idx;
-    }
-}
-/**
  * Takes v8 profile and populates sample, location, and function fields of
@@ -92,3 +68,3 @@ * profile.proto.
     profile.function = functions;
-    profile.stringTable = stringTable.strings;
+    profile.stringTable = stringTable;
     function getLocation(node, sourceMapper) {
@@ -115,3 +91,3 @@ let profLoc = {
         const line = getLine(node.scriptId, profLoc.file, profLoc.name, profLoc.line);
-        const location = new profile_1.perftools.profiles.Location({ id, line: [line] });
+        const location = new pprof_format_1.Location({ id, line: [line] });
         locations.push(location);
@@ -121,3 +97,3 @@ return location;
     function getLine(scriptId, scriptName, name, line) {
-        return new profile_1.perftools.profiles.Line({
+        return new pprof_format_1.Line({
             functionId: getFunction(scriptId, scriptName, name).id,
@@ -136,8 +112,8 @@ line,
         functionIdMap.set(keyStr, id);
-        const nameId = stringTable.getIndexOrAdd(name || '(anonymous)');
-        const f = new profile_1.perftools.profiles.Function({
+        const nameId = stringTable.dedup(name || '(anonymous)');
+        const f = new pprof_format_1.Function({
             id,
             name: nameId,
             systemName: nameId,
-            filename: stringTable.getIndexOrAdd(scriptName || ''),
+            filename: stringTable.dedup(scriptName || ''),
         });
@@ -153,5 +129,5 @@ functions.push(f);
 function createSampleCountValueType(table) {
-    return new profile_1.perftools.profiles.ValueType({
-        type: table.getIndexOrAdd('sample'),
-        unit: table.getIndexOrAdd('count'),
+    return new pprof_format_1.ValueType({
+        type: table.dedup('sample'),
+        unit: table.dedup('count'),
     });
@@ -164,5 +140,5 @@ }
 function createTimeValueType(table) {
-    return new profile_1.perftools.profiles.ValueType({
-        type: table.getIndexOrAdd('wall'),
-        unit: table.getIndexOrAdd('nanoseconds'),
+    return new pprof_format_1.ValueType({
+        type: table.dedup('wall'),
+        unit: table.dedup('nanoseconds'),
     });
@@ -175,5 +151,5 @@ }
 function createCpuValueType(table) {
-    return new profile_1.perftools.profiles.ValueType({
-        type: table.getIndexOrAdd('cpu'),
-        unit: table.getIndexOrAdd('nanoseconds'),
+    return new pprof_format_1.ValueType({
+        type: table.dedup('cpu'),
+        unit: table.dedup('nanoseconds'),
     });
@@ -186,5 +162,5 @@ }
 function createObjectCountValueType(table) {
-    return new profile_1.perftools.profiles.ValueType({
-        type: table.getIndexOrAdd('objects'),
-        unit: table.getIndexOrAdd('count'),
+    return new pprof_format_1.ValueType({
+        type: table.dedup('objects'),
+        unit: table.dedup('count'),
     });
@@ -197,7 +173,11 @@ }
 function createAllocationValueType(table) {
-    return new profile_1.perftools.profiles.ValueType({
-        type: table.getIndexOrAdd('space'),
-        unit: table.getIndexOrAdd('bytes'),
+    return new pprof_format_1.ValueType({
+        type: table.dedup('space'),
+        unit: table.dedup('bytes'),
     });
 }
+function computeTotalHitCount(root) {
+    return (root.hitCount +
+        root.children.reduce((sum, node) => sum + computeTotalHitCount(node), 0));
+}
 /**
@@ -210,7 +190,17 @@ * Converts v8 time profile into into a profile proto.
  */
-function serializeTimeProfile(prof, intervalMicros, sourceMapper) {
+function serializeTimeProfile(prof, intervalMicros, sourceMapper, recomputeSamplingInterval = false) {
+    // If requested, recompute sampling interval it from profile duration and total number of hits,
+    // since profile duration should be #hits x interval
+    // Recomputing an average interval is more accurate, since in practice intervals between
+    // samples are larger than the requested sampling interval (eg. 12.5ms vs 10ms requested).
+    if (recomputeSamplingInterval) {
+        const totalHitCount = computeTotalHitCount(prof.topDownRoot);
+        if (totalHitCount > 0) {
+            intervalMicros = Math.floor((prof.endTime - prof.startTime) / computeTotalHitCount(prof.topDownRoot));
+        }
+    }
     const intervalNanos = intervalMicros * 1000;
     const appendTimeEntryToSamples = (entry, samples) => {
         if (entry.node.hitCount > 0) {
-            const sample = new profile_1.perftools.profiles.Sample({
+            const sample = new pprof_format_1.Sample({
                 locationId: entry.stack,
@@ -222,3 +212,3 @@ value: [entry.node.hitCount, entry.node.hitCount * intervalNanos],
     };
-    const stringTable = new StringTable();
+    const stringTable = new pprof_format_1.StringTable();
     const sampleValueType = createSampleCountValueType(stringTable);
@@ -231,6 +221,6 @@ const timeValueType = createTimeValueType(stringTable);
         periodType: timeValueType,
-        period: intervalMicros,
+        period: intervalNanos,
     };
     serialize(profile, prof.topDownRoot, appendTimeEntryToSamples, stringTable, undefined, sourceMapper);
-    return profile;
+    return new pprof_format_1.Profile(profile);
 }
@@ -242,7 +232,7 @@ exports.serializeTimeProfile = serializeTimeProfile;
         if (typeof value === 'number' || typeof value === 'string') {
-            const label = new profile_1.perftools.profiles.Label({
-                key: stringTable.getIndexOrAdd(key),
+            const label = new pprof_format_1.Label({
+                key: stringTable.dedup(key),
                 num: typeof value === 'number' ? value : undefined,
                 str: typeof value === 'string'
-                    ? stringTable.getIndexOrAdd(value)
+                    ? stringTable.dedup(value)
                     : undefined,
@@ -265,19 +255,14 @@ });
     const appendCpuEntryToSamples = (entry, samples) => {
-        for (const labelSet of entry.node.labelSets) {
-            const sample = new profile_1.perftools.profiles.Sample({
+        for (const labelCpu of entry.node.labelSets) {
+            const sample = new pprof_format_1.Sample({
                 locationId: entry.stack,
-                value: [1, intervalNanos],
-                label: buildLabels(labelSet, stringTable),
+                value: [1, labelCpu.cpuTime],
+                label: buildLabels(labelCpu.labels, stringTable),
             });
             samples.push(sample);
         }
-        const unknownEntryCount = entry.node.hitCount - entry.node.labelSets.length;
-        if (unknownEntryCount > 0) {
-            const sample = new profile_1.perftools.profiles.Sample({
+        if (entry.node.hitCount > 0) {
+            const sample = new pprof_format_1.Sample({
                 locationId: entry.stack,
-                value: [
-                    unknownEntryCount,
-                    entry.node.cpuTime,
-                    // unknownEntryCount * intervalNanos,
-                ],
+                value: [entry.node.hitCount, entry.node.cpuTime],
             });
@@ -287,3 +272,3 @@ samples.push(sample);
     };
-    const stringTable = new StringTable();
+    const stringTable = new pprof_format_1.StringTable();
     const sampleValueType = createSampleCountValueType(stringTable);
@@ -297,6 +282,6 @@ // const wallValueType = createTimeValueType(stringTable);
         periodType: cpuValueType,
-        period: intervalMicros,
+        period: intervalNanos,
     };
     serialize(profile, prof.topDownRoot, appendCpuEntryToSamples, stringTable, undefined, sourceMapper);
-    return profile;
+    return new pprof_format_1.Profile(profile);
 }
@@ -318,3 +303,3 @@ exports.serializeCpuProfile = serializeCpuProfile;
             for (const alloc of entry.node.allocations) {
-                const sample = new profile_1.perftools.profiles.Sample({
+                const sample = new pprof_format_1.Sample({
                     locationId: entry.stack,
@@ -328,3 +313,3 @@ value: [alloc.count, alloc.sizeBytes * alloc.count],
     };
-    const stringTable = new StringTable();
+    const stringTable = new pprof_format_1.StringTable();
     const sampleValueType = createObjectCountValueType(stringTable);
@@ -339,5 +324,5 @@ const allocationValueType = createAllocationValueType(stringTable);
     serialize(profile, prof, appendHeapEntryToSamples, stringTable, ignoreSamplesPath, sourceMapper);
-    return profile;
+    return new pprof_format_1.Profile(profile);
 }
 exports.serializeHeapProfile = serializeHeapProfile;
 //# sourceMappingURL=profile-serializer.js.map

out/src/sourcemapper/sourcemapper.js

@@ -36,3 +36,2 @@ "use strict";
 }
-const scanner = require("../../third_party/cloud-debug-nodejs/src/agent/io/scanner");
 const pify = require('pify');
@@ -207,7 +206,43 @@ const pLimit = require('p-limit');
 }
+function isErrnoException(e) {
+    return e instanceof Error && 'code' in e;
+}
+function isNonFatalError(error) {
+    const nonFatalErrors = ['ENOENT', 'EPERM', 'EACCES', 'ELOOP'];
+    return (isErrnoException(error) && error.code && nonFatalErrors.includes(error.code));
+}
+async function* walk(dir, 
+// eslint-disable-next-line @typescript-eslint/no-unused-vars
+fileFilter = (filename) => true, 
+// eslint-disable-next-line @typescript-eslint/no-unused-vars
+directoryFilter = (root, dirname) => true) {
+    async function* walkRecursive(dir) {
+        try {
+            for await (const d of await fs.promises.opendir(dir)) {
+                const entry = path.join(dir, d.name);
+                if (d.isDirectory() && directoryFilter(dir, d.name)) {
+                    yield* walkRecursive(entry);
+                }
+                else if (d.isFile() && fileFilter(d.name)) {
+                    // check that the file is readable
+                    await fs.promises.access(entry, fs.constants.R_OK);
+                    yield entry;
+                }
+            }
+        }
+        catch (error) {
+            if (!isNonFatalError(error)) {
+                throw error;
+            }
+        }
+    }
+    yield* walkRecursive(dir);
+}
 async function getMapFiles(baseDir) {
-    const fileStats = await scanner.scan(false, baseDir, /.js.map$/);
-    const mapFiles = fileStats.selectFiles(/.js.map$/, process.cwd());
+    const mapFiles = [];
+    for await (const entry of walk(baseDir, filename => filename.endsWith('.js.map'), (root, dirname) => root !== '/proc' && dirname !== '.git' && dirname !== 'node_modules')) {
+        mapFiles.push(path.relative(baseDir, entry));
+    }
     return mapFiles;
 }
 //# sourceMappingURL=sourcemapper.js.map

out/src/time-profiler.d.ts

@@ -34,4 +34,4 @@ /**
 }
-export declare function profile(options: TimeProfilerOptions): Promise<import("../../proto/profile").perftools.profiles.IProfile>;
-export declare function start(intervalMicros?: Microseconds, name?: string, sourceMapper?: SourceMapper, lineNumbers?: boolean): (restart?: boolean) => import("../../proto/profile").perftools.profiles.IProfile;
+export declare function profile(options: TimeProfilerOptions): Promise<import("pprof-format").Profile>;
+export declare function start(intervalMicros?: Microseconds, name?: string, sourceMapper?: SourceMapper, lineNumbers?: boolean): (restart?: boolean) => import("pprof-format").Profile;
 export {};

out/src/time-profiler.js

@@ -52,3 +52,3 @@ "use strict";
         }
-        return (0, profile_serializer_1.serializeTimeProfile)(result, intervalMicros, sourceMapper);
+        return (0, profile_serializer_1.serializeTimeProfile)(result, intervalMicros, sourceMapper, true);
     }
@@ -69,3 +69,3 @@ // For Node.js v16+, we want to start the next profile before we stop the
             profiler.dispose();
-        return (0, profile_serializer_1.serializeTimeProfile)(result, intervalMicros, sourceMapper);
+        return (0, profile_serializer_1.serializeTimeProfile)(result, intervalMicros, sourceMapper, true);
     }
@@ -72,0 +72,0 @@ }

out/src/v8-types.d.ts

@@ -58,6 +58,10 @@ /**
 }
+export interface LabelsCpu {
+    labels: LabelSet;
+    cpuTime: number;
+}
 export interface CpuProfileNode extends ProfileNode {
     hitCount: number;
     cpuTime: number;
-    labelSets: LabelSet[];
+    labelSets: LabelsCpu[];
 }
@@ -64,0 +68,0 @@ export interface CpuProfileSample {

package.json

 {
   "name": "@datadog/pprof",
-  "version": "1.1.1",
+  "version": "2.0.0-pre-6af96b0",
   "description": "pprof support for Node.js",
@@ -21,5 +21,3 @@ "repository": "datadog/pprof-nodejs",
     "prepare": "npm run compile",
-    "pretest": "npm run compile && npm run rebuild",
-    "proto": "npm run proto:profile",
-    "proto:profile": "mkdir -p proto && npx --yes pbjs -t static-module -w commonjs -o proto/profile.js third_party/proto/profile.proto && pbts -o proto/profile.d.ts proto/profile.js"
+    "pretest": "npm run compile && npm run rebuild"
   },
@@ -32,7 +30,6 @@ "author": {
     "delay": "^5.0.0",
-    "findit2": "^2.2.3",
     "node-gyp-build": "^3.9.0",
     "p-limit": "^3.1.0",
     "pify": "^5.0.0",
-    "protobufjs": "^7.0.0",
+    "pprof-format": "^2.0.6",
     "source-map": "^0.7.3",
@@ -61,3 +58,3 @@ "split": "^1.0.1"
     "gts": "^3.0.0",
-    "js-green-licenses": "^3.0.0",
+    "js-green-licenses": "^4.0.0",
     "linkinator": "^4.0.2",
@@ -64,0 +61,0 @@ "mkdirp": "^1.0.4",

New alerts

License Policy Violation

License

This package is not allowed per your license policy. Review the package's license to ensure compliance.

Found 1 instance in 1 package

Major refactor

Supply chain risk

Package has recently undergone a major refactor. It may be unstable or indicate significant internal changes. Use caution when updating to versions that include significant changes.

Found 1 instance in 1 package

No v1

Quality

Package is not semver >=1. This means it is not stable and does not support ^ ranges.

Found 1 instance in 1 package

Fixed alerts

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License

This package is not allowed per your license policy. Review the package's license to ensure compliance.

Found 1 instance in 1 package

Major refactor

Supply chain risk

Package has recently undergone a major refactor. It may be unstable or indicate significant internal changes. Use caution when updating to versions that include significant changes.

Found 1 instance in 1 package

Uses eval

Supply chain risk

Package uses dynamic code execution (e.g., eval()), which is a dangerous practice. This can prevent the code from running in certain environments and increases the risk that the code may contain exploits or malicious behavior.

Found 1 instance in 1 package

Improved metrics

Dependency count

7

decreased by-12.5%

Number of low supply chain risk alerts

4

decreased by-20%

Number of medium supply chain risk alerts

65

decreased by-1.52%

Worsened metrics

Total package byte prevSize

10465147

decreased by-3.95%

Number of package files

101

decreased by-5.61%

Lines of code

1380

decreased by-74.44%

Number of low quality alerts

2

increased by100%

Dependency changes

• + Addedpprof-format@^2.0.6

• + Addedpprof-format@2.1.0(transitive)

• - Removedfindit2@^2.2.3

• - Removedprotobufjs@^7.0.0

• - Removed@protobufjs/aspromise@1.1.2(transitive)

• - Removed@protobufjs/base64@1.1.2(transitive)

• - Removed@protobufjs/codegen@2.0.4(transitive)

• - Removed@protobufjs/eventemitter@1.1.0(transitive)

• - Removed@protobufjs/fetch@1.1.0(transitive)

• - Removed@protobufjs/float@1.0.2(transitive)

• - Removed@protobufjs/inquire@1.1.0(transitive)

• - Removed@protobufjs/path@1.1.2(transitive)

• - Removed@protobufjs/pool@1.1.0(transitive)

• - Removed@protobufjs/utf8@1.1.0(transitive)

• - Removed@types/node@22.10.2(transitive)

• - Removedfindit2@2.2.3(transitive)

• - Removedlong@5.2.3(transitive)

• - Removedprotobufjs@7.4.0(transitive)

• - Removedundici-types@6.20.0(transitive)