[FLUME-648] Add buffering to Syslog source's InputStream

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Won't Fix
• Affects Version/s: 0.9.3, 0.9.4
• Fix Version/s: 0.9.5
• Component/s: Sinks+Sources
• Assignee: Unassigned
• Reporter: Disabled imported user
• Created: 30/May/11 02:33
• Updated: 05/Nov/14 10:21
• Resolved: 05/Nov/14 10:21

Description

Wrapping the ReaderThread's InputStream with a BufferedInputStream results in a huge performance increase:

Before:

$ ./loggen --verbose -s 113 -r 50000 --interval 30 -i localhost 35999
average rate = 4467.76 msg/sec, count=134041, time=30.018, (last) msg size=113, bandwidth=493.02 kB/sec

After:
$ ./loggen --verbose -s 113 -r 50000 --interval 30 -i localhost 35999
average rate = 50776.43 msg/sec, count=1523293, time=30.000, (last) msg size=113, bandwidth=5603.26 kB/sec

Tested with the standard syslogTcp() source and a null sink. See attached patch.