From 3592a7e928008b0e89286c91aa72b4db89a50d5f Mon Sep 17 00:00:00 2001 From: Steven Baltakatei Sandoval Date: Fri, 3 Jul 2020 20:58:01 +0000 Subject: [PATCH 1/1] doc(bkgpslog-plan):Closed TODO item --- exec/bkgpslog-plan.org | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) diff --git a/exec/bkgpslog-plan.org b/exec/bkgpslog-plan.org index b7cc736..47154eb 100644 --- a/exec/bkgpslog-plan.org +++ b/exec/bkgpslog-plan.org @@ -33,7 +33,8 @@ done using a new function ~checkMakeTar~. magicWriteVersion() to be called whenever a new time-stamped ~VERSION~ file needs to be generated and appended to the output tar file ~PATHOUT_TAR~. -** TODO Rewrite buffer loop to reduce lag between gpspipe runs +** DONE Rewrite buffer loop to reduce lag between gpspipe runs + CLOSED: [2020-07-03 Fri 20:57] 2020-07-03T17:10Z; bktei> As is, there is still a 5-6 second lag between when ~gpspipe~ times out at the end of a buffer round and when ~gpspipe~ is called by the subsequent buffer round. I believe this can @@ -47,7 +48,16 @@ while( $SECONDS < $SCRIPT_TTL); do writeBuffer & done #+END_EXAMPLE - +2020-07-03T20:56Z; bktei> I simplified it futher to something like +this: +#+BEGIN_EXAMPLE +while( $SECONDS < $SCRIPT_TTL); do + writeBuffer & + sleep $SCRIPT_TTL +done +#+END_EXAMPLE +Raspberry Pi Zero W shows approximately 71ms of drift per buffer round +with 10s buffer. * bkgpslog narrative ** Initialize environment *** Init variables -- 2.30.2