<html><head><meta http-equiv="Content-Type" content="text/html charset=iso-8859-1"><base href="x-msg://117/"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><br><div><div>On 17 jul 2013, at 19:56, Peer Stritzinger <<a href="mailto:peerst@gmail.com">peerst@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div style="margin: 0px; font-style: normal; font-variant: normal; font-weight: normal; font-size: medium; line-height: normal; font-family: Helvetica; letter-spacing: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><br class="Apple-interchange-newline">On 2013-07-16 08:04:23 +0000, Arie van Wingerden said:</div><div style="margin: 0px; font-style: normal; font-variant: normal; font-weight: normal; font-size: medium; line-height: normal; font-family: Helvetica; min-height: 14px; letter-spacing: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><br></div><div style="margin: 0px 0px 0px 12px; font-style: normal; font-variant: normal; font-weight: normal; font-size: 16px; line-height: normal; font-family: Times; color: rgb(1, 24, 146); letter-spacing: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; ">I have read this article <a href="http://www.erlang.se/workshop/2007/proceedings/05nicosi.pdf">http://www.erlang.se/workshop/2007/proceedings/05nicosi.pdf</a> and I am wondering if there has been any progress in this field.</div><div style="margin: 0px; font-style: normal; font-variant: normal; font-weight: normal; font-size: medium; line-height: normal; font-family: Helvetica; min-height: 14px; letter-spacing: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><br></div><div style="margin: 0px; font-style: normal; font-variant: normal; font-weight: normal; font-size: medium; line-height: normal; font-family: Helvetica; letter-spacing: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; ">Not that I heard of.</div><div style="margin: 0px; font-style: normal; font-variant: normal; font-weight: normal; font-size: medium; line-height: normal; font-family: Helvetica; min-height: 14px; letter-spacing: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><br></div><div style="margin: 0px; font-style: normal; font-variant: normal; font-weight: normal; font-size: medium; line-height: normal; font-family: Helvetica; letter-spacing: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; ">I work around this problem by porting Erlang to RTEMS which is a hard realtime OS.</div><div style="margin: 0px; font-style: normal; font-variant: normal; font-weight: normal; font-size: medium; line-height: normal; font-family: Helvetica; letter-spacing: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; ">So one can do all hard realtime stuff in C, C++ or fwiw even Ada and run it at a higher prio than the Erlang VM</div><div style="margin: 0px; font-style: normal; font-variant: normal; font-weight: normal; font-size: medium; line-height: normal; font-family: Helvetica; min-height: 14px; letter-spacing: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><br></div><div style="margin: 0px; font-style: normal; font-variant: normal; font-weight: normal; font-size: medium; line-height: normal; font-family: Helvetica; letter-spacing: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; ">For more info:<span class="Apple-converted-space"> </span><a href="http://www.grisp.org">http://www.grisp.org</a></div><div style="margin: 0px; font-style: normal; font-variant: normal; font-weight: normal; font-size: medium; line-height: normal; font-family: Helvetica; min-height: 14px; letter-spacing: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><br></div></blockquote><blockquote type="cite"><div style="margin: 0px; font-style: normal; font-variant: normal; font-weight: normal; font-size: medium; line-height: normal; font-family: Helvetica; letter-spacing: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; ">Even more info will be up soon, also with adding RSS to the site to make tracking it easier.</div><div style="margin: 0px; font-style: normal; font-variant: normal; font-weight: normal; font-size: medium; line-height: normal; font-family: Helvetica; min-height: 14px; letter-spacing: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><br></div><div style="margin: 0px; font-style: normal; font-variant: normal; font-weight: normal; font-size: medium; line-height: normal; font-family: Helvetica; letter-spacing: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; ">I could imagine some subset of Erlang along FRP lines being compiled specially being able to also write hard realtime tasks without C but thats just pipedreams at the moment.</div></blockquote><div><br></div>Static Erlang ? I like it :-)</div><div><br><blockquote type="cite"><div style="margin: 0px; font-style: normal; font-variant: normal; font-weight: normal; font-size: medium; line-height: normal; font-family: Helvetica; min-height: 14px; letter-spacing: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><br></div><div style="margin: 0px; font-style: normal; font-variant: normal; font-weight: normal; font-size: medium; line-height: normal; font-family: Helvetica; letter-spacing: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; ">But often the hard realtime stuff in systems is quite small so keeping just the hard realtime stuff in C and do as much as possible in Erlang on a Grisp system is very feasible.</div><div style="margin: 0px; font-style: normal; font-variant: normal; font-weight: normal; font-size: medium; line-height: normal; font-family: Helvetica; min-height: 14px; letter-spacing: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><br></div></blockquote>+1.</div><div>Even when I write interrupt handlers in C the code fragments tend to be very tiny, like 10-50 linux code. </div><div>Mostly they update some registers, increment a counter, put some data into a queue for later processing.</div><div><br></div><div>Just think about the amount of cpu required to switch to the Erlang VM and dispatch some Erlang code in an interrupt</div><div>handler. Holy cow :-)</div><div><br></div><div>/Tony</div><div><br><blockquote type="cite"><div style="margin: 0px; font-style: normal; font-variant: normal; font-weight: normal; font-size: medium; line-height: normal; font-family: Helvetica; letter-spacing: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; ">Cheers,</div><div style="margin: 0px; font-style: normal; font-variant: normal; font-weight: normal; font-size: medium; line-height: normal; font-family: Helvetica; letter-spacing: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; ">-- Peer</div><span style="font-family: Helvetica; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; display: inline !important; float: none; ">_______________________________________________</span><br style="font-family: Helvetica; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><span style="font-family: Helvetica; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; display: inline !important; float: none; ">erlang-questions mailing list</span><br style="font-family: Helvetica; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><a href="mailto:erlang-questions@erlang.org" style="font-family: Helvetica; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; ">erlang-questions@erlang.org</a><br style="font-family: Helvetica; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><a href="http://erlang.org/mailman/listinfo/erlang-questions" style="font-family: Helvetica; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; ">http://erlang.org/mailman/listinfo/erlang-questions</a><br style="font-family: Helvetica; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "></blockquote></div><div><br></div><br></body></html>