[SSHD-13] Avoid SecureRandom.generateSeed on every SSH connection

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.1.0
• Assignee: Guillaume Nodet
• Reporter: Shawn Pearce
• Created: 05/Feb/09 21:45
• Updated: 27/Jul/09 07:23
• Resolved: 06/Feb/09 08:40

Description

Avoid SecureRandom.generateSeed on every SSH connection

This is easily 38.9% of our CPU time when establishing a new SSH session. For applications that build and tear down sessions at a high rate, losing ~39% of the time to building a temporary PRNG just for that session is a fairly large waste.