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zeekay
abf99d05fc
Restructured from flat .tex/.pdf files into per-paper subdirectories. Added Antje Worring as co-author on all papers. Synced PDFs to pdfs/ for download site.
59 lines
2.0 KiB
TeX
59 lines
2.0 KiB
TeX
\section{Experimental Setup}
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%% ============================================================================
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\subsection{Hardware}
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All benchmarks were conducted on a single machine to eliminate network variability:
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\begin{table}[h]
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\centering
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\caption{Benchmark hardware specification}
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\begin{tabular}{ll}
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\toprule
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\textbf{Component} & \textbf{Specification} \\
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\midrule
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CPU & AMD EPYC 7763 64-Core @ 2.45 GHz \\
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Cores used & 16 (pinned via \texttt{taskset}) \\
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Memory & 256 GB DDR4-3200 ECC \\
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NIC & 25 Gbps Mellanox ConnectX-6 (loopback) \\
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Disk & Not used (all in-memory) \\
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OS & Ubuntu 22.04 LTS, kernel 5.15.0-91 \\
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Go & 1.22.2 \\
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\bottomrule
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\end{tabular}
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\end{table}
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\subsection{Methodology}
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\begin{enumerate}
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\item \textbf{Warm-up}: 10,000 iterations discarded before measurement.
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\item \textbf{Iterations}: Minimum $10^6$ per measurement; $10^7$ for sub-microsecond operations.
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\item \textbf{Runs}: 10 independent runs; report median and p99.
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\item \textbf{GC control}: \texttt{GOGC=off} for serialization-only tests; default \texttt{GOGC=100} for system tests to capture real GC behavior.
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\item \textbf{CPU pinning}: Goroutines pinned to dedicated cores via \texttt{runtime.LockOSThread()} and \texttt{taskset}.
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\item \textbf{Allocation counting}: \texttt{testing.B.ReportAllocs()} and \texttt{runtime.ReadMemStats()}.
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\end{enumerate}
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\subsection{Test Messages}
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We define a canonical consensus vote message used across all benchmarks:
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\begin{definition}[Consensus Vote Message]
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\label{def:vote}
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A consensus vote contains:
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\begin{itemize}
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\item Round number (uint64, 8 bytes)
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\item Block hash (32 bytes)
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\item Voter ID (32 bytes)
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\item Signature (64 bytes)
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\item Timestamp (uint64, 8 bytes)
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\item Vote type (uint8, 1 byte)
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\end{itemize}
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Fixed payload: 145 bytes. With ZAP header (16 bytes): 161 bytes total.
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\end{definition}
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For variable-size tests, we use padded variants at 64B, 1KB, 64KB, and 1MB.
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%% ============================================================================
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