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This repository was archived by the owner on Apr 19, 2026. It is now read-only.
apib today (like ab) does a single DNS lookup at the start of processing, regardless of the number of connections.
This is fine for most servers but for DNS-based load balancing services such as Amazon ELB, performance is not as good as it should be.
Instead, we should experiment with doing a DNS lookup for each concurrent connection, or even with doing a DNS lookup periodically when opening a new connection. This will better help us test the highly variable throughput produced by ELB.
apib today (like ab) does a single DNS lookup at the start of processing, regardless of the number of connections.
This is fine for most servers but for DNS-based load balancing services such as Amazon ELB, performance is not as good as it should be.
Instead, we should experiment with doing a DNS lookup for each concurrent connection, or even with doing a DNS lookup periodically when opening a new connection. This will better help us test the highly variable throughput produced by ELB.