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Groups > comp.lang.c++ > #113575 > unrolled thread
| Started by | Bonita Montero <Bonita.Montero@gmail.com> |
|---|---|
| First post | 2023-10-30 08:12 +0100 |
| Last post | 2023-11-05 15:30 +0000 |
| Articles | 11 on this page of 151 — 7 participants |
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Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-10-30 08:12 +0100
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-10-30 13:08 -0700
Re: Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-10-31 13:25 +0100
Re: Run this under Windows and Linux Branimir Maksimovic <branimir.maksimovic@icloud.com> - 2023-10-31 17:37 +0000
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-10-31 13:59 -0700
Re: Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-11-01 13:00 +0100
Re: Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-11-01 19:24 +0100
Re: Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-11-01 19:28 +0100
Re: Run this under Windows and Linux scott@slp53.sl.home (Scott Lurndal) - 2023-11-01 19:04 +0000
Re: Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-11-01 20:11 +0100
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-11-01 13:02 -0700
Re: Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-11-03 13:36 +0100
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-11-03 15:13 -0700
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-11-04 00:19 -0700
Re: Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-11-04 10:13 +0100
Re: Run this under Windows and Linux scott@slp53.sl.home (Scott Lurndal) - 2023-11-04 15:53 +0000
Re: Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-11-04 16:58 +0100
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-11-04 11:44 -0700
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-11-09 01:05 -0800
Re: Run this under Windows and Linux scott@slp53.sl.home (Scott Lurndal) - 2023-11-04 16:03 +0000
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-11-04 11:45 -0700
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-11-04 11:48 -0700
Re: Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-11-04 19:58 +0100
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-11-04 12:14 -0700
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-11-01 13:01 -0700
Re: Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-11-02 07:10 +0100
Re: Run this under Windows and Linux Kaz Kylheku <864-117-4973@kylheku.com> - 2023-11-01 20:50 +0000
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-11-01 14:05 -0700
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-11-01 14:07 -0700
Re: Run this under Windows and Linux Michael S <already5chosen@yahoo.com> - 2023-11-03 16:04 +0200
Re: Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-11-03 15:24 +0100
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-11-03 15:14 -0700
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-11-01 12:58 -0700
Re: Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-11-02 07:10 +0100
Re: Run this under Windows and Linux scott@slp53.sl.home (Scott Lurndal) - 2023-11-02 14:58 +0000
Re: Run this under Windows and Linux David Brown <david.brown@hesbynett.no> - 2023-11-02 16:34 +0100
Re: Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-11-02 16:46 +0100
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-11-02 13:12 -0700
Re: Run this under Windows and Linux David Brown <david.brown@hesbynett.no> - 2023-11-03 10:13 +0100
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-11-03 15:16 -0700
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-11-08 20:33 -0800
Re: Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-11-02 16:44 +0100
Re: Run this under Windows and Linux Kaz Kylheku <864-117-4973@kylheku.com> - 2023-11-02 16:02 +0000
Re: Run this under Windows and Linux Michael S <already5chosen@yahoo.com> - 2023-11-03 16:10 +0200
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-11-04 21:05 -0700
Re: Run this under Windows and Linux Kaz Kylheku <864-117-4973@kylheku.com> - 2023-11-05 04:23 +0000
Re: Run this under Windows and Linux Kaz Kylheku <864-117-4973@kylheku.com> - 2023-11-02 15:37 +0000
Re: Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-11-02 16:48 +0100
Re: Run this under Windows and Linux Kaz Kylheku <864-117-4973@kylheku.com> - 2023-11-02 16:00 +0000
Re: Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-11-02 17:26 +0100
Re: Run this under Windows and Linux David Brown <david.brown@hesbynett.no> - 2023-11-03 10:15 +0100
Re: Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-11-03 11:55 +0100
Re: Run this under Windows and Linux David Brown <david.brown@hesbynett.no> - 2023-11-03 14:41 +0100
Re: Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-11-03 15:22 +0100
Re: Run this under Windows and Linux David Brown <david.brown@hesbynett.no> - 2023-11-03 16:35 +0100
Re: Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-11-03 16:49 +0100
Re: Run this under Windows and Linux David Brown <david.brown@hesbynett.no> - 2023-11-03 18:02 +0100
Re: Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-11-03 18:08 +0100
Re: Run this under Windows and Linux Kaz Kylheku <864-117-4973@kylheku.com> - 2023-11-03 17:29 +0000
Re: Run this under Windows and Linux scott@slp53.sl.home (Scott Lurndal) - 2023-11-03 18:52 +0000
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-11-03 15:21 -0700
Re: Run this under Windows and Linux David Brown <david.brown@hesbynett.no> - 2023-11-04 17:22 +0100
Re: Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-11-04 17:35 +0100
Re: Run this under Windows and Linux David Brown <david.brown@hesbynett.no> - 2023-11-04 17:56 +0100
Re: Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-11-04 18:18 +0100
Re: Run this under Windows and Linux scott@slp53.sl.home (Scott Lurndal) - 2023-11-03 18:51 +0000
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-11-03 15:20 -0700
Re: Run this under Windows and Linux Kaz Kylheku <864-117-4973@kylheku.com> - 2023-11-03 17:28 +0000
Re: Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-11-03 18:30 +0100
Re: Run this under Windows and Linux Kaz Kylheku <864-117-4973@kylheku.com> - 2023-11-03 18:03 +0000
Re: Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-11-03 19:07 +0100
Re: Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-11-03 19:08 +0100
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-11-03 15:26 -0700
Re: Run this under Windows and Linux scott@slp53.sl.home (Scott Lurndal) - 2023-11-03 18:54 +0000
Re: Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-11-03 20:25 +0100
Re: Run this under Windows and Linux Kaz Kylheku <864-117-4973@kylheku.com> - 2023-11-03 20:56 +0000
Re: Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-11-04 10:15 +0100
Re: Run this under Windows and Linux scott@slp53.sl.home (Scott Lurndal) - 2023-11-04 16:05 +0000
Re: Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-11-04 17:35 +0100
Re: Run this under Windows and Linux Kaz Kylheku <864-117-4973@kylheku.com> - 2023-11-04 18:44 +0000
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-11-03 15:19 -0700
Re: Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-11-04 10:16 +0100
Re: Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-11-04 10:25 +0100
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-11-04 12:42 -0700
Re: Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-11-05 05:33 +0100
Re: Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-11-05 05:35 +0100
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-11-05 12:11 -0800
Re: Run this under Windows and Linux Kaz Kylheku <864-117-4973@kylheku.com> - 2023-11-05 22:54 +0000
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-11-05 18:49 -0800
Re: Run this under Windows and Linux Kaz Kylheku <864-117-4973@kylheku.com> - 2023-11-06 02:58 +0000
Re: Run this under Windows and Linux Kaz Kylheku <864-117-4973@kylheku.com> - 2023-11-03 15:32 +0000
Re: Run this under Windows and Linux David Brown <david.brown@hesbynett.no> - 2023-11-03 18:05 +0100
Re: Run this under Windows and Linux scott@slp53.sl.home (Scott Lurndal) - 2023-11-03 16:53 +0000
Re: Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-11-03 18:09 +0100
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-11-03 15:25 -0700
Re: Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-11-04 10:17 +0100
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-11-04 12:44 -0700
Re: Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-11-05 05:36 +0100
Re: Run this under Windows and Linux Kaz Kylheku <864-117-4973@kylheku.com> - 2023-11-05 17:25 +0000
Re: Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-11-05 18:55 +0100
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-11-05 12:12 -0800
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-11-05 12:18 -0800
Re: Run this under Windows and Linux Kaz Kylheku <864-117-4973@kylheku.com> - 2023-11-05 22:55 +0000
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-11-05 18:53 -0800
Re: Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-11-06 04:44 +0100
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-11-05 20:10 -0800
Re: Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-11-06 05:16 +0100
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-11-08 20:44 -0800
Re: Run this under Windows and Linux Kaz Kylheku <864-117-4973@kylheku.com> - 2023-11-06 04:22 +0000
Re: Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-11-06 05:37 +0100
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-11-05 21:01 -0800
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-11-05 21:00 -0800
Re: Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-11-06 09:36 +0100
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-11-06 12:11 -0800
Re: Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-11-06 23:52 +0100
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-11-07 11:51 -0800
Re: Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-11-06 05:15 +0100
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-11-05 21:02 -0800
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-11-05 21:05 -0800
Re: Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-11-06 09:37 +0100
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-11-06 12:13 -0800
Re: Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-11-06 23:53 +0100
Re: Run this under Windows and Linux Kaz Kylheku <864-117-4973@kylheku.com> - 2023-11-06 23:00 +0000
Re: Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-11-07 05:36 +0100
Re: Run this under Windows and Linux Kaz Kylheku <864-117-4973@kylheku.com> - 2023-11-07 05:29 +0000
Re: Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-11-07 09:38 +0100
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-11-07 11:53 -0800
Re: Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-11-09 05:49 +0100
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-11-08 20:52 -0800
Re: Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-11-09 05:54 +0100
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-11-08 20:57 -0800
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-11-08 20:45 -0800
Re: Run this under Windows and Linux Kaz Kylheku <864-117-4973@kylheku.com> - 2023-11-05 20:53 +0000
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-11-06 12:13 -0800
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-11-03 15:24 -0700
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-11-03 15:18 -0700
Re: Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-11-04 10:18 +0100
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-11-04 12:45 -0700
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-11-02 13:18 -0700
Re: Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-11-01 13:21 +0100
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-11-01 12:59 -0700
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-11-04 00:01 -0700
Re: Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-11-04 10:19 +0100
Re: Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-11-04 10:53 +0100
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-11-04 12:51 -0700
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-11-04 12:53 -0700
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-11-04 12:54 -0700
Re: Run this under Windows and Linux "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2023-11-05 12:15 -0800
Re: Run this under Windows and Linux Branimir Maksimovic <branimir.maksimovic@icloud.com> - 2023-11-03 21:18 +0000
Re: Run this under Windows and Linux Bonita Montero <Bonita.Montero@gmail.com> - 2023-11-04 10:29 +0100
Re: Run this under Windows and Linux Branimir Maksimovic <branimir.maksimovic@icloud.com> - 2023-11-05 15:30 +0000
Page 8 of 8 — ← Prev page 1 2 3 4 5 6 7 [8]
| From | "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> |
|---|---|
| Date | 2023-11-01 12:59 -0700 |
| Message-ID | <uhuaml$1omhf$5@dont-email.me> |
| In reply to | #117459 |
On 11/1/2023 5:21 AM, Bonita Montero wrote: > Am 31.10.2023 um 21:59 schrieb Chris M. Thomasson: > >> Why do you say that? > > The article you mentioned is also discussed here: > https://stackoverflow.com/questions/1635416/are-benaphores-worth-implementing-on-modern-oss > The first replier says the same I said: its a normal mutex. > Huh? The benaphore is a semaphore! So, both of you are totally wrong here. Think about it...
[toc] | [prev] | [next] | [standalone]
| From | "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> |
|---|---|
| Date | 2023-11-04 00:01 -0700 |
| Message-ID | <ui4q7n$38rsj$2@dont-email.me> |
| In reply to | #117472 |
On 11/1/2023 12:59 PM, Chris M. Thomasson wrote: > On 11/1/2023 5:21 AM, Bonita Montero wrote: >> Am 31.10.2023 um 21:59 schrieb Chris M. Thomasson: >> >>> Why do you say that? >> >> The article you mentioned is also discussed here: >> https://stackoverflow.com/questions/1635416/are-benaphores-worth-implementing-on-modern-oss >> The first replier says the same I said: its a normal mutex. >> > > Huh? The benaphore is a semaphore! So, both of you are totally wrong > here. Think about it... Your theme song? https://youtu.be/FE-hBbBBGBs
[toc] | [prev] | [next] | [standalone]
| From | Bonita Montero <Bonita.Montero@gmail.com> |
|---|---|
| Date | 2023-11-04 10:19 +0100 |
| Message-ID | <ui52bd$3a606$6@dont-email.me> |
| In reply to | #117472 |
Am 01.11.2023 um 20:59 schrieb Chris M. Thomasson: > Huh? The benaphore is a semaphore! So, both of you are totally wrong > here. Think about it... Google for "benaphore mutex" and you'll find several refernces that a benaphore is a mutex, including the two articles I've referred so far.
[toc] | [prev] | [next] | [standalone]
| From | Bonita Montero <Bonita.Montero@gmail.com> |
|---|---|
| Date | 2023-11-04 10:53 +0100 |
| Message-ID | <ui54be$3ai3f$1@dont-email.me> |
| In reply to | #117551 |
Am 04.11.2023 um 10:19 schrieb Bonita Montero: > Google for "benaphore mutex" ... Or rather "benaphore mutex -semaphore".
[toc] | [prev] | [next] | [standalone]
| From | "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> |
|---|---|
| Date | 2023-11-04 12:51 -0700 |
| Message-ID | <ui67bq$3haup$4@dont-email.me> |
| In reply to | #117551 |
On 11/4/2023 2:19 AM, Bonita Montero wrote: > Am 01.11.2023 um 20:59 schrieb Chris M. Thomasson: > >> Huh? The benaphore is a semaphore! So, both of you are totally wrong >> here. Think about it... > > Google for "benaphore mutex" and you'll find several refernces that a > benaphore is a mutex, including the two articles I've referred so far. > MORON!!!
[toc] | [prev] | [next] | [standalone]
| From | "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> |
|---|---|
| Date | 2023-11-04 12:53 -0700 |
| Message-ID | <ui67fi$3haup$5@dont-email.me> |
| In reply to | #117573 |
On 11/4/2023 12:51 PM, Chris M. Thomasson wrote: > On 11/4/2023 2:19 AM, Bonita Montero wrote: >> Am 01.11.2023 um 20:59 schrieb Chris M. Thomasson: >> >>> Huh? The benaphore is a semaphore! So, both of you are totally wrong >>> here. Think about it... >> >> Google for "benaphore mutex" and you'll find several refernces that a >> benaphore is a mutex, including the two articles I've referred so far. >> > > MORON!!! The benaphore is a semaphore using a bakery algorithm. You are completely confused and incoherently flailing around.
[toc] | [prev] | [next] | [standalone]
| From | "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> |
|---|---|
| Date | 2023-11-04 12:54 -0700 |
| Message-ID | <ui67ia$3hgpl$1@dont-email.me> |
| In reply to | #117574 |
On 11/4/2023 12:53 PM, Chris M. Thomasson wrote: > On 11/4/2023 12:51 PM, Chris M. Thomasson wrote: >> On 11/4/2023 2:19 AM, Bonita Montero wrote: >>> Am 01.11.2023 um 20:59 schrieb Chris M. Thomasson: >>> >>>> Huh? The benaphore is a semaphore! So, both of you are totally wrong >>>> here. Think about it... >>> >>> Google for "benaphore mutex" and you'll find several refernces that a >>> benaphore is a mutex, including the two articles I've referred so far. >>> >> >> MORON!!! > > The benaphore is a semaphore using a bakery algorithm. You are > completely confused and incoherently flailing around. https://vorbrodt.blog/2019/02/05/fast-semaphore
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| From | "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> |
|---|---|
| Date | 2023-11-05 12:15 -0800 |
| Message-ID | <ui8t5e$4c78$3@dont-email.me> |
| In reply to | #117575 |
On 11/4/2023 12:54 PM, Chris M. Thomasson wrote: > On 11/4/2023 12:53 PM, Chris M. Thomasson wrote: >> On 11/4/2023 12:51 PM, Chris M. Thomasson wrote: >>> On 11/4/2023 2:19 AM, Bonita Montero wrote: >>>> Am 01.11.2023 um 20:59 schrieb Chris M. Thomasson: >>>> >>>>> Huh? The benaphore is a semaphore! So, both of you are totally >>>>> wrong here. Think about it... >>>> >>>> Google for "benaphore mutex" and you'll find several refernces that a >>>> benaphore is a mutex, including the two articles I've referred so far. >>>> >>> >>> MORON!!! >> >> The benaphore is a semaphore using a bakery algorithm. You are >> completely confused and incoherently flailing around. > > https://vorbrodt.blog/2019/02/05/fast-semaphore Fwiw, Joe Seigh created a really interesting read/write ticket based bakery algorithm a long time ago back in comp.programming.threads. It was a spinlock, but the logic was rather elegant. Humm... I wonder if I can find that old thread!
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| From | Branimir Maksimovic <branimir.maksimovic@icloud.com> |
|---|---|
| Date | 2023-11-03 21:18 +0000 |
| Message-ID | <7td1N.116068$MJ59.17727@fx10.iad> |
| In reply to | #113575 |
On 2023-10-30, Bonita Montero <Bonita.Montero@gmail.com> wrote:
> MSVC's C++20 semaphore class spins to acquire the semaphore;
> g++'s / libstdc++'s doesn't spin. I wote a little test program
> to rest how long it takes to flip to another thread and back
> with a binary_semaphore (always a counting_semaphore<1>).
> Here it is:
>
> #if defined(_WIN32)
> #include <Windows.h>
> #elif defined(__unix__)
> #include <sys/resource.h>
> #endif
> #include <iostream>
> #include <thread>
> #include <semaphore>
> #include <atomic>
> #include <utility>
> #include <vector>
>
> using namespace std;
>
> int main()
> {
> binary_semaphore
> semA( 1 ),
> semB( 0 );
> auto getTimes = []() -> pair<int64_t, int64_t>
> {
> #if defined(_WIN32)
> FILETIME ftDummy, ftKernel, ftUser;
> GetThreadTimes( GetCurrentThread(), &ftDummy, &ftDummy, &ftKernel,
> &ftUser );
> auto compose = []( FILETIME &ft ) { return
> ((uint64_t)ft.dwHighDateTime << 32 | ft.dwLowDateTime) * 100; };
> return { compose( ftKernel ), compose( ftUser ) };
> #elif defined(__unix__)
> rusage ru;
> getrusage( RUSAGE_THREAD, &ru );
> auto compose = []( timeval &tv ) -> int64_t { return
> (uint64_t)tv.tv_sec * 1'000'000'000u + (uint32_t)tv.tv_usec * 1'000u; };
> return { compose( ru.ru_stime ), compose( ru.ru_utime ) };
> #endif
> };
> atomic_int64_t
> aFlips( 0 ),
> aKernel( 0 ),
> aUser( 0 );
> atomic_bool stop( false );
> auto thr = [&]( binary_semaphore &semMe, binary_semaphore &semYou )
> {
> auto tBegin = getTimes();
> uint64_t f = 0;
> for( ; !stop.load( memory_order_relaxed ); ++f )
> semMe.acquire(),
> semYou.release();
> auto tEnd = getTimes();
> aFlips += f;
> aKernel += tEnd.first - tBegin.first;
> aUser += tEnd.second + tBegin.second;
> };
> vector<jthread> threads;
> threads.emplace_back( thr, ref( semA ), ref( semB ) );
> threads.emplace_back( thr, ref( semB ), ref( semA ) );
> this_thread::sleep_for( 1s );
> stop = true;
> threads.resize( 0 );
> double
> kernel = (double)aKernel,
> user = (double)aUser,
> total = kernel + user,
> flips = (double)aFlips;
> cout << user / total * 100.0 << "%" << endl;
> cout << total / flips << "ns" << endl;
> }
>
> Results unter Windows 11 on a AMD Ryzen 7950X (Zen4):
> 100%
> 89.3523ns
> So 100% of the CPU time is spent in user space and a flip back
> and forth takes 90ns.
> Results unter Ubuntu 20.04 on a AMD Threadripper 3990X (Zen2):
> 6.56209%
> 476.213ns
> So under Linux most of the time is spent in kernel space and I think
> about 0.5us, thats about 2000 clock cycles with full boost, isn't bad
> for an explicit kernel call.
> I think this userland spinning isn't really necessary because you
> normally a usual mutex and a condition_variable fits for everything
> you need. An explicit semaphore is rather needed if you build your
> own synchronization primitves on top of the semaphore. And if you do
> that you usually have your own spinning with that and you don't need
> further spinning if you want go into kernel mode. But this additional
> spinning actually doesn't really hurt since the kernel call itself
> costs a lot more.
>
maxa@Branimirs-MacBook-Air News % g++ -O2 run.cpp -o run -std=c++20
run.cpp:37:2: warning: non-void lambda does not return a value [-Wreturn-type]
};
^
1 warning generated.
bmaxa@Branimirs-MacBook-Air News % ./run
libc++abi: terminating
zsh: abort ./run
--
7-77-777, Evil Sinner!
https://www.linkedin.com/in/branimir-maksimovic-6762bbaa/
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| From | Bonita Montero <Bonita.Montero@gmail.com> |
|---|---|
| Date | 2023-11-04 10:29 +0100 |
| Message-ID | <ui52ta$3aaiu$1@dont-email.me> |
| In reply to | #117532 |
Maybe I missed some header which is implicitly included with me.
The code compiles fine with g++, clang++, clang-cl and MSVC on
my PC.
Am 03.11.2023 um 22:18 schrieb Branimir Maksimovic:
> On 2023-10-30, Bonita Montero <Bonita.Montero@gmail.com> wrote:
>> MSVC's C++20 semaphore class spins to acquire the semaphore;
>> g++'s / libstdc++'s doesn't spin. I wote a little test program
>> to rest how long it takes to flip to another thread and back
>> with a binary_semaphore (always a counting_semaphore<1>).
>> Here it is:
>>
>> #if defined(_WIN32)
>> #include <Windows.h>
>> #elif defined(__unix__)
>> #include <sys/resource.h>
>> #endif
>> #include <iostream>
>> #include <thread>
>> #include <semaphore>
>> #include <atomic>
>> #include <utility>
>> #include <vector>
>>
>> using namespace std;
>>
>> int main()
>> {
>> binary_semaphore
>> semA( 1 ),
>> semB( 0 );
>> auto getTimes = []() -> pair<int64_t, int64_t>
>> {
>> #if defined(_WIN32)
>> FILETIME ftDummy, ftKernel, ftUser;
>> GetThreadTimes( GetCurrentThread(), &ftDummy, &ftDummy, &ftKernel,
>> &ftUser );
>> auto compose = []( FILETIME &ft ) { return
>> ((uint64_t)ft.dwHighDateTime << 32 | ft.dwLowDateTime) * 100; };
>> return { compose( ftKernel ), compose( ftUser ) };
>> #elif defined(__unix__)
>> rusage ru;
>> getrusage( RUSAGE_THREAD, &ru );
>> auto compose = []( timeval &tv ) -> int64_t { return
>> (uint64_t)tv.tv_sec * 1'000'000'000u + (uint32_t)tv.tv_usec * 1'000u; };
>> return { compose( ru.ru_stime ), compose( ru.ru_utime ) };
>> #endif
>> };
>> atomic_int64_t
>> aFlips( 0 ),
>> aKernel( 0 ),
>> aUser( 0 );
>> atomic_bool stop( false );
>> auto thr = [&]( binary_semaphore &semMe, binary_semaphore &semYou )
>> {
>> auto tBegin = getTimes();
>> uint64_t f = 0;
>> for( ; !stop.load( memory_order_relaxed ); ++f )
>> semMe.acquire(),
>> semYou.release();
>> auto tEnd = getTimes();
>> aFlips += f;
>> aKernel += tEnd.first - tBegin.first;
>> aUser += tEnd.second + tBegin.second;
>> };
>> vector<jthread> threads;
>> threads.emplace_back( thr, ref( semA ), ref( semB ) );
>> threads.emplace_back( thr, ref( semB ), ref( semA ) );
>> this_thread::sleep_for( 1s );
>> stop = true;
>> threads.resize( 0 );
>> double
>> kernel = (double)aKernel,
>> user = (double)aUser,
>> total = kernel + user,
>> flips = (double)aFlips;
>> cout << user / total * 100.0 << "%" << endl;
>> cout << total / flips << "ns" << endl;
>> }
>>
>> Results unter Windows 11 on a AMD Ryzen 7950X (Zen4):
>> 100%
>> 89.3523ns
>> So 100% of the CPU time is spent in user space and a flip back
>> and forth takes 90ns.
>> Results unter Ubuntu 20.04 on a AMD Threadripper 3990X (Zen2):
>> 6.56209%
>> 476.213ns
>> So under Linux most of the time is spent in kernel space and I think
>> about 0.5us, thats about 2000 clock cycles with full boost, isn't bad
>> for an explicit kernel call.
>> I think this userland spinning isn't really necessary because you
>> normally a usual mutex and a condition_variable fits for everything
>> you need. An explicit semaphore is rather needed if you build your
>> own synchronization primitves on top of the semaphore. And if you do
>> that you usually have your own spinning with that and you don't need
>> further spinning if you want go into kernel mode. But this additional
>> spinning actually doesn't really hurt since the kernel call itself
>> costs a lot more.
>>
> maxa@Branimirs-MacBook-Air News % g++ -O2 run.cpp -o run -std=c++20
> run.cpp:37:2: warning: non-void lambda does not return a value [-Wreturn-type]
> };
> ^
> 1 warning generated.
> bmaxa@Branimirs-MacBook-Air News % ./run
> libc++abi: terminating
> zsh: abort ./run
>
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| From | Branimir Maksimovic <branimir.maksimovic@icloud.com> |
|---|---|
| Date | 2023-11-05 15:30 +0000 |
| Message-ID | <wyO1N.161687$HwD9.94880@fx11.iad> |
| In reply to | #117553 |
On 2023-11-04, Bonita Montero <Bonita.Montero@gmail.com> wrote: > Maybe I missed some header which is implicitly included with me. > The code compiles fine with g++, clang++, clang-cl and MSVC on > my PC. It compiles, but aborts when running... >> maxa@Branimirs-MacBook-Air News % g++ -O2 run.cpp -o run -std=c++20 >> run.cpp:37:2: warning: non-void lambda does not return a value [-Wreturn-type] >> }; >> ^ >> 1 warning generated. >> bmaxa@Branimirs-MacBook-Air News % ./run >> libc++abi: terminating >> zsh: abort ./run >> > -- 7-77-777, Evil Sinner! https://www.linkedin.com/in/branimir-maksimovic-6762bbaa/
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