Hi,<span></span><br><br>On Saturday, February 16, 2013, yi huang  wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">I&#39; m curious about the design and trade offs behind the new IO manager. I see two changes from the code:<div>
<br></div><div>1. Run IO manager thread on each capability.</div><div>2. Use ONESHOT flag to save a system call.</div>
<div><br></div>Is there other interesting things to know?<div>Is it possible to use epoll&#39;s ET mode to save even more system calls?<span></span></div></blockquote><div><br></div><div> Andreas and Kazu (CCed) would know more. In addition to the things you mentioned then parallel I/O manager also uses lock striping and is smarter bout when it makes blocking system calls.</div>