Buffered Writes Tests

Buffered Writes Tests

SAIO

Virtual Machine Configuration

 CPUs: 4
 Memory: 4GB
 Disk: 30GB on SSD

Default Network Chunk Size and Disk Chunk Size (64K)

IceHouse Stable Branch

Tests done with 10,000 objects using swift-bench -n 10000 -s <object size>

 Object Size     Transfers Per Second (Chunked Encoding / NOT-Chunked)
 16KB            160.7 / 168.3
 256KB           134.0 / 135.3
 4MB              25.9 /  26.7

Buffered Writes Branch

Tests done with 10,000 objects using swift-bench -n 10000 -s <object size>

 Object Size     Transfers Per Second (Chunked Encoding / NOT-Chunked)
 16KB            160.6 / 161.1
 256KB           130.7 / 144.7
 4MB              26.4 /  30.0

2MB Network Chunk Size

IceHouse Stable Branch

Tests done with 10,000 objects using swift-bench -n 10000 -s <object size>

 Object Size     Transfers Per Second (Chunked Encoding / NOT-Chunked)
 16KB            151.5 / 157.7
 256KB           136.9 / 131.5
 4MB              25.7 /  22.5

64K Network Chunk Size, 2MB Disk Chunk Size

Buffered Writes Branch

Tests done with 10,000 objects using swift-bench -n 10000 -s <object size>

 Object Size     Transfers Per Second (Chunked Encoding / NOT-Chunked)
 16KB            169.9 / 171.8
 256KB           143.9 / 144.5
 4MB              31.8 /  26.7