From: Paul Garlick <pgarlick@tourbillion-technology.com>
To: Laura Lazzati <laura.lazzati.15@gmail.com>
Cc: Guix-devel <guix-devel@gnu.org>
Subject: Re: Video narration
Date: Wed, 01 May 2019 00:36:13 +0100 [thread overview]
Message-ID: <e1e83fed681ac51329c8fdd586994fc6fe9b61fb.camel@tourbillion-technology.com> (raw)
In-Reply-To: <CAPNLzUO1aU1hJ=8SL7eM3yDji=X2RShH9Xp3Y+g=GGpncKB-tg@mail.gmail.com>
Hi Laura,
> firstCli originally gives me a length of 00:01:54.847000000
> Then, adding the sleep metacommand I get 00:02:18.248000000
>
> As regards secondCli, originally: 00:00:59.608000000
> And adding the sleep metacommand: 00:01:11.648000000
Thank you for testing. The results are different from my system.
I think we are seeing a difference between wall-clock time and cpu
time. In the screen file I can see there is a snap! procedure that
writes a frame to disk after each interval. It looks as if the disk
i/o is interrupting the sleep counter and introducing a delay that
depends on the system activity.
We may need to change tack to get accurate time delays. One thought is
to replace the timer with a 'repeat' procedure that repeats the
previous frame. If we know the sleep duration, s, and the interval, i,
we can calculate the number of repeats, N, needed:
N = s / i
This method would be unaffected by disk write times or rounding errors.
Best regards,
Paul.
next prev parent reply other threads:[~2019-04-30 23:36 UTC|newest]
Thread overview: 87+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-05 12:52 Video narration Laura Lazzati
2019-03-05 15:14 ` Paul Garlick
2019-03-05 16:27 ` Laura Lazzati
2019-03-15 11:48 ` Paul Garlick
2019-03-15 14:27 ` Laura Lazzati
2019-03-16 3:27 ` Laura Lazzati
2019-03-18 17:07 ` Paul Garlick
2019-03-19 5:00 ` Laura Lazzati
2019-03-19 21:02 ` Laura Lazzati
2019-03-20 12:39 ` Paul Garlick
2019-03-20 13:38 ` Ricardo Wurmus
2019-03-20 16:20 ` Laura Lazzati
2019-03-22 17:11 ` Paul Garlick
2019-03-22 17:35 ` Laura Lazzati
2019-03-22 19:39 ` Paul Garlick
2019-03-24 3:47 ` Laura Lazzati
2019-03-24 10:17 ` Gábor Boskovits
2019-03-24 18:52 ` Laura Lazzati
2019-03-25 12:55 ` Paul Garlick
2019-03-25 22:49 ` Laura Lazzati
2019-03-25 23:16 ` sirgazil
2019-03-26 17:08 ` Paul Garlick
2019-03-26 17:58 ` Laura Lazzati
2019-03-27 21:00 ` Paul Garlick
2019-03-27 22:01 ` Laura Lazzati
2019-03-29 22:32 ` Paul Garlick
2019-03-29 22:45 ` Laura Lazzati
2019-04-01 15:16 ` Paul Garlick
2019-04-01 18:02 ` Laura Lazzati
2019-04-02 8:34 ` Paul Garlick
2019-04-02 18:19 ` Laura Lazzati
2019-04-03 14:05 ` Paul Garlick
2019-04-03 14:25 ` sirgazil
2019-04-03 15:38 ` Gábor Boskovits
2019-04-03 16:45 ` sirgazil
2019-04-03 19:11 ` Laura Lazzati
2019-04-05 14:36 ` Paul Garlick
2019-04-05 18:23 ` Laura Lazzati
2019-04-05 18:49 ` Ricardo Wurmus
2019-04-08 16:19 ` Paul Garlick
2019-04-09 10:46 ` Laura Lazzati
2019-04-09 14:10 ` Paul Garlick
2019-04-17 19:44 ` Laura Lazzati
2019-04-17 22:11 ` Paul Garlick
2019-04-18 17:12 ` Ludovic Courtès
2019-04-19 12:14 ` Ricardo Wurmus
2019-04-18 17:20 ` Laura Lazzati
2019-04-19 0:25 ` Paul Garlick
2019-04-20 21:11 ` Laura Lazzati
2019-04-22 12:29 ` Paul Garlick
2019-04-22 18:27 ` Laura Lazzati
2019-04-22 22:29 ` Paul Garlick
2019-04-26 22:01 ` Paul Garlick
2019-04-26 22:54 ` Laura Lazzati
2019-04-29 17:53 ` Paul Garlick
2019-04-29 19:50 ` Laura Lazzati
2019-04-29 20:06 ` Paul Garlick
2019-04-29 20:19 ` Laura Lazzati
2019-04-29 22:50 ` Paul Garlick
2019-04-30 8:52 ` Laura Lazzati
2019-04-30 13:22 ` Laura Lazzati
2019-04-30 23:36 ` Paul Garlick [this message]
2019-05-01 14:05 ` Laura Lazzati
2019-05-02 21:36 ` Paul Garlick
2019-05-04 19:34 ` Laura Lazzati
2019-05-06 11:22 ` Paul Garlick
2019-05-08 20:47 ` Laura Lazzati
2019-05-08 23:14 ` Paul Garlick
2019-05-09 14:57 ` Laura Lazzati
2019-05-09 17:54 ` Paul Garlick
2019-05-10 19:50 ` Laura Lazzati
2019-05-10 21:54 ` Paul Garlick
2019-05-10 21:58 ` Laura Lazzati
2019-05-10 20:19 ` Gábor Boskovits
2019-05-10 21:57 ` Laura Lazzati
2019-05-10 22:34 ` sirgazil
2019-05-21 2:52 ` Laura Lazzati
2019-05-21 8:29 ` Gábor Boskovits
2019-05-22 12:54 ` Laura Lazzati
2019-05-23 10:14 ` Paul Garlick
2019-05-23 14:07 ` Laura Lazzati
2019-05-23 21:36 ` Paul Garlick
2019-05-25 18:19 ` Laura Lazzati
2019-05-06 13:35 ` Ricardo Wurmus
2019-05-06 20:34 ` Paul Garlick
2019-04-02 17:21 ` Gábor Boskovits
2019-04-02 18:16 ` Laura Lazzati
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