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Groups > comp.os.linux.misc > #61211
| From | vallor <vallor@cultnix.org> |
|---|---|
| Newsgroups | comp.os.linux.misc |
| Subject | Re: Are We Back to the "Wars" Now ? |
| Date | 2024-11-22 07:02 +0000 |
| Message-ID | <lqaoknF8btnU2@mid.individual.net> (permalink) |
| References | (7 earlier) <wwvcyio8m9p.fsf@LkoBDZeT.terraraq.uk> <vhorrb$t48o$1@dont-email.me> <vhosra$1171f$1@dont-email.me> <lqalg1F7fi9U2@mid.individual.net> <vhp8qi$12m83$2@dont-email.me> |
On Fri, 22 Nov 2024 06:37:06 -0000 (UTC), Lawrence D'Oliveiro <ldo@nz.invalid> wrote in <vhp8qi$12m83$2@dont-email.me>: > On 22 Nov 2024 06:09:05 GMT, vallor wrote: > >> Doesn't the named pipe connection work through the filesystem code? That >> could add overhead. > > No. The only thing that exists in the filesystem is the “special file” > entry in the directory. Opening that triggers special-case processing in > the kernel that creates the usual pipe buffering/synchronization > structures (or links up with existing structures created by some prior > opening of the same special file, perhaps by a different process), not > dependent on any filesystem. > > I just tried creating a C program to do speed tests on data transfers > through pipes and socket pairs between processes. I am currently setting > the counter to 10 gigabytes, and transferring that amount of data (using > whichever mechanism) only takes a couple of seconds on my system. > > So the idea that pipes are somehow not suited to large data transfers is > patently nonsense. > >> Can't use named pipes on just any filesystem -- won't work on NFS for >> example, unless I'm mistaken. > > Hard to believe NFS could stuff that up, but there you go ... Just tested NFS, and named pipes work there. $ time -p ( dd if=/dev/zero of=test count=$[1024*1024] ) & cat test > /dev/null [1] 38859 1048576+0 records in 1048576+0 records out 536870912 bytes (537 MB, 512 MiB) copied, 0.918945 s, 584 MB/s real 0.92 user 0.16 sys 0.76 NFS vers 4.1. -- -v System76 Thelio Mega v1.1 x86_64 NVIDIA RTX 3090 Ti OS: Linux 6.12.0 Release: Mint 21.3 Mem: 258G "Diagonally parked in a parallel universe."
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Are We Back to the "Wars" Now ? "186282@ud0s4.net" <186283@ud0s4.net> - 2024-11-18 01:20 -0500
Re: Are We Back to the "Wars" Now ? D <nospam@example.net> - 2024-11-18 10:13 +0100
Re: Are We Back to the "Wars" Now ? "186282@ud0s4.net" <186283@ud0s4.net> - 2024-11-19 21:57 -0500
Re: Are We Back to the "Wars" Now ? D <nospam@example.net> - 2024-11-20 10:01 +0100
Re: Are We Back to the "Wars" Now ? Pancho <Pancho.Jones@proton.me> - 2024-11-18 09:27 +0000
Re: Are We Back to the "Wars" Now ? Richard Kettlewell <invalid@invalid.invalid> - 2024-11-18 09:54 +0000
Re: Are We Back to the "Wars" Now ? Rich <rich@example.invalid> - 2024-11-18 10:46 +0000
Re: Are We Back to the "Wars" Now ? Phillip Frabott <nntp@fulltermprivacy.com> - 2024-11-18 09:45 -0500
Re: Are We Back to the "Wars" Now ? Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-11-20 00:23 +0000
Re: Are We Back to the "Wars" Now ? Phillip Frabott <nntp@fulltermprivacy.com> - 2024-11-21 02:05 -0500
Re: Are We Back to the "Wars" Now ? Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-11-21 07:22 +0000
Re: Are We Back to the "Wars" Now ? Phillip Frabott <nntp@fulltermprivacy.com> - 2024-11-21 10:12 -0500
Re: Are We Back to the "Wars" Now ? Richard Kettlewell <invalid@invalid.invalid> - 2024-11-21 18:38 +0000
Re: Are We Back to the "Wars" Now ? Phillip Frabott <nntp@fulltermprivacy.com> - 2024-11-21 21:55 -0500
Re: Are We Back to the "Wars" Now ? Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-11-22 03:12 +0000
Re: Are We Back to the "Wars" Now ? vallor <vallor@cultnix.org> - 2024-11-22 06:09 +0000
Re: Are We Back to the "Wars" Now ? Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-11-22 06:37 +0000
Re: Are We Back to the "Wars" Now ? vallor <vallor@cultnix.org> - 2024-11-22 07:02 +0000
Named pipes vs. Unix sockets (was: Re: Are We Back to the "Wars" Now ?) vallor <vallor@cultnix.org> - 2024-11-22 07:29 +0000
Re: Named pipes vs. Unix sockets vallor <vallor@cultnix.org> - 2024-11-22 08:38 +0000
Re: Named pipes vs. Unix sockets Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-11-22 09:37 +0000
Re: Named pipes vs. Unix sockets Phillip Frabott <nntp@fulltermprivacy.com> - 2024-11-22 10:00 -0500
Re: Named pipes vs. Unix sockets Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-11-22 20:52 +0000
Re: Named pipes vs. Unix sockets Phillip Frabott <nntp@fulltermprivacy.com> - 2024-11-22 17:06 -0500
Re: Named pipes vs. Unix sockets Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-11-23 00:42 +0000
Re: Named pipes vs. Unix sockets rlhamil@smart.net (Richard L. Hamilton) - 2024-12-03 05:23 +0000
Re: Named pipes vs. Unix sockets Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-12-03 06:20 +0000
Re: Are We Back to the "Wars" Now ? Rich <rich@example.invalid> - 2024-11-22 19:11 +0000
Re: Are We Back to the "Wars" Now ? vallor <vallor@cultnix.org> - 2024-11-23 03:25 +0000
Re: Are We Back to the "Wars" Now ? Rich <rich@example.invalid> - 2024-11-23 04:28 +0000
Re: Are We Back to the "Wars" Now ? Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-11-23 04:50 +0000
Pipes v. FIFOs (was: Are We Back to the "Wars" Now ?) Geoff Clare <geoff@clare.See-My-Signature.invalid> - 2024-11-26 14:21 +0000
Re: Are We Back to the "Wars" Now ? Richard Kettlewell <invalid@invalid.invalid> - 2024-11-22 10:04 +0000
Re: Are We Back to the "Wars" Now ? Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-11-21 21:56 +0000
Re: Are We Back to the "Wars" Now ? "186282@ud0s4.net" <186283@ud0s4.net> - 2024-11-22 01:44 -0500
Re: Are We Back to the "Wars" Now ? Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-11-22 06:49 +0000
Re: Are We Back to the "Wars" Now ? "186282@ud0s4.net" <186283@ud0s4.net> - 2024-11-22 23:44 -0500
Re: Are We Back to the "Wars" Now ? Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-11-23 05:19 +0000
Re: Are We Back to the "Wars" Now ? "186282@ud0s4.net" <186283@ud0s4.net> - 2024-11-23 01:27 -0500
Re: Are We Back to the "Wars" Now ? Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-11-23 07:41 +0000
Re: Are We Back to the "Wars" Now ? "Carlos E.R." <robin_listas@es.invalid> - 2024-11-23 14:39 +0100
Re: Are We Back to the "Wars" Now ? Fritz Wuehler <fritz@spamexpire-202411.rodent.frell.theremailer.net> - 2024-11-23 22:32 +0100
Re: Are We Back to the "Wars" Now ? "Carlos E.R." <robin_listas@es.invalid> - 2024-11-24 00:11 +0100
Re: Are We Back to the "Wars" Now ? Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-11-23 22:04 +0000
Re: Are We Back to the "Wars" Now ? "Carlos E.R." <robin_listas@es.invalid> - 2024-11-24 00:11 +0100
Re: Are We Back to the "Wars" Now ? The Natural Philosopher <tnp@invalid.invalid> - 2024-11-23 11:12 +0000
Re: Are We Back to the "Wars" Now ? Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-11-23 21:25 +0000
Re: Are We Back to the "Wars" Now ? "186282@ud0s4.net" <186283@ud0s4.net> - 2024-11-23 19:42 -0500
Re: Are We Back to the "Wars" Now ? Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-11-24 02:03 +0000
Re: Are We Back to the "Wars" Now ? Rich <rich@example.invalid> - 2024-11-24 14:25 +0000
Re: Are We Back to the "Wars" Now ? Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2024-11-24 15:48 +0000
Re: Are We Back to the "Wars" Now ? Rich <rich@example.invalid> - 2024-11-24 16:56 +0000
Re: Are We Back to the "Wars" Now ? Richard Kettlewell <invalid@invalid.invalid> - 2024-11-24 19:14 +0000
Re: Are We Back to the "Wars" Now ? "Carlos E.R." <robin_listas@es.invalid> - 2024-11-24 20:32 +0100
Re: Are We Back to the "Wars" Now ? Rich <rich@example.invalid> - 2024-11-24 19:36 +0000
Re: Are We Back to the "Wars" Now ? Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-11-20 00:22 +0000
Re: Are We Back to the "Wars" Now ? "186282@ud0s4.net" <186283@ud0s4.net> - 2024-12-03 01:19 -0500
Re: Are We Back to the "Wars" Now ? Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-12-03 06:49 +0000
Re: Are We Back to the "Wars" Now ? "186282@ud0s4.net" <186283@ud0s4.net> - 2024-12-04 01:10 -0500
Re: Are We Back to the "Wars" Now ? Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-12-04 06:45 +0000
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