mirror of
https://github.com/apple/swift-nio.git
synced 2026-05-20 20:30:36 +00:00
Cory Benfield
99ac8ec29c
Motivation: When debugging allocations it is frequently helpful to be able to use bpftrace instead of the more limited heaptrack. Modifications: Offer an equivalent of malloc-aggregation.d for bpftrace. Result: Allocation recording on Linux is available.
52 lines
1.4 KiB
Plaintext
Executable File
52 lines
1.4 KiB
Plaintext
Executable File
#!/usr/bin/env bpftrace
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/*===----------------------------------------------------------------------===*
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*
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* This source file is part of the SwiftNIO open source project
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*
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* Copyright (c) 2017-2025 Apple Inc. and the SwiftNIO project authors
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* Licensed under Apache License v2.0
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*
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* See LICENSE.txt for license information
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* See CONTRIBUTORS.txt for the list of SwiftNIO project authors
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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*===----------------------------------------------------------------------===*/
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/*
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* Example invocation:
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* sudo dev/malloc-aggregation.bt -c .build/release/NIOHTTP1Server
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*
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* This will frequently lack symbols, so consider using the pid-based version:
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* sudo dev/malloc-aggregation.bt -p 19898
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*/
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BEGIN {
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printf("\n\n");
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printf("=====\n");
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printf("This will collect stack shots of allocations and print it when ");
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printf("you exit bpftrace.\n");
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printf("So go ahead, run your tests and then press Ctrl+C in this window ");
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printf("to see the aggregated result\n");
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printf("=====\n");
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}
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uprobe:*:aligned_alloc,
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uprobe:*:calloc,
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uprobe:*:malloc,
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uprobe:*:posix_memalign,
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uprobe:*:realloc,
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uprobe:*:reallocf,
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uprobe:*:valloc,
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uprobe:*:malloc_zone_calloc,
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uprobe:*:malloc_zone_malloc,
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uprobe:*:malloc_zone_memalign,
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uprobe:*:malloc_zone_realloc,
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uprobe:*:malloc_zone_valloc {
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@malloc_calls[ustack()] = count();
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}
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END {
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print(@malloc_calls);
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}
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