We just released the Ampere Performance Toolkit (APT) — a suite of four open-source tools to help you benchmark, port, profile, and optimize workloads on AArch64. APT includes the Ampere Porting Advisor (APA) for migration guidance, the Ampere System Profiler (ASP) for system-level bottlenecks, the Ampere PMU Profiler (APP) for microarchitectural analysis, and the Ampere Performance Kit for Benchmarking (APKB) for repeatable, automated performance runs across bare metal, VMs, and cloud. Together they provide a disciplined, repeatable methodology for finding and fixing performance issues faster.
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I have used iovisor/bcc, linux perf, brendangregg/FlameGraph, Intel PCM and Intel PerfSpect but somehow, I can not understand how to use the tool 