We have been doing some testing with the 1.5 dev12 branch (commit 3e394c903f156ab2bcf731df39c4e6e74df3b6b4).
First of all, we're very happy with native SSL coming to haproxy. Our tests initially indicated a big performance increase over using apache frontends for ssl offloading in front of haproxy. However, after about 15 minutes of running smoothly, the sessions rate suddenly drops, the number of open connections suddenly drops, and connecting to haproxy suddenly takes a long time. I have not found any clear reason for this (plenty of free RAM, CPU is not pegged). A haproxy restart resets the clock and everything works again (if only temporarily). What can I do to eliminate/debug this issue? Has this problem been solved in a newer commit? Martijn Otto Copernica B.V.

