We measured the throughput of our HTTP server running on the unmodified kernel. When handling requests for small files (1 KByte) that were in the filesystem cache, our server achieved a rate of 2954 requests/sec. using connection-per-request HTTP, and 9487 requests/sec. using persistent-connection HTTP. These rates saturated the CPU, corresponding to per-request CPU costs of 338us and 105us, respectively.