CC-Memcached - A Lightweight Memcached Server Implementation

CC-Memcached is a custom implementation of a Memcached-compatible server, designed as part of the Memcached Challenge. It supports basic caching operations like SET, GET, ADD, REPLACE, APPEND, and PREPEND, along with expiration times.

Features

• Memcached Text Protocol Support (Compatible with memtier_benchmark)
• Multi-threaded Support (Handles concurrent clients efficiently)
• Expiration Handling (Supports TTL for cache entries)
• High Performance (Tested with memtier_benchmark under load)
• Efficient Synchronization using sync.Map for thread safety

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Installation

Prerequisites

• Go 1.18+ (Download from golang.org)
• memtier_benchmark (For performance testing)
  Install using:

  git clone https://github.com/RedisLabs/memtier_benchmark
  cd memtier_benchmark
  autoreconf -ivf && ./configure && make && sudo make install

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Usage

1. Clone the repository:

git clone https://github.com/nullsploit01/cc-memcached.git
cd cc-memcached

2. Build the project:

go build -o cc-memcached

3. Run the server:

./cc-memcached

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Benchmarking with memtier_benchmark

To test the performance of CC-Memcached, use the following command:

memtier_benchmark -p 11211 -P memcache_text \
  -n 100000 -c 20 -t 5 --ratio=1:1 \
  --key-pattern=S:S --data-size=128

Benchmark Results:

ALL STATS
============================================================================================================================
Type         Ops/sec     Hits/sec   Misses/sec    Avg. Latency     p50 Latency     p99 Latency   p99.9 Latency       KB/sec
----------------------------------------------------------------------------------------------------------------------------
Sets       107874.61          ---          ---         0.18622         0.17500         0.42300         1.07900     17358.73
Gets       107874.61    107874.61         0.00         0.18472         0.17500         0.41500         1.04700     19020.86
Waits           0.00          ---          ---             ---             ---             ---             ---          ---
Totals     215749.22    107874.61         0.00         0.18547         0.17500         0.42300         1.06300     36379.60

100% Cache Hit Rate Ultra-low Latency (~0.18ms per request) Over 215,000 Operations Per Second

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License

This project is open-source and available under the MIT License.

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🔗 Links

• Challenge URL: Memcached Challenge
• Benchmark Tool: memtier_benchmark