From: Bart Schaefer <schaefer@brasslantern.com>
To: "Mark J. Reed" <markjreed@gmail.com>
Cc: Zsh hackers list <zsh-workers@zsh.org>
Subject: Re: Bug: time doesn't work on builtins
Date: Thu, 15 Aug 2024 11:52:20 -0700 [thread overview]
Message-ID: <CAH+w=7a3BuQnPMa5YEy8n8ZNSNNoYNKLL9Aki5iCSPKbTyn5eQ@mail.gmail.com> (raw)
In-Reply-To: <CAA=-s3w0wsH7xkS58JS0AbGdOoihYxq+cKEpVomFU_f1_w-ynQ@mail.gmail.com>
On Thu, Aug 15, 2024 at 6:15 AM Mark J. Reed <markjreed@gmail.com> wrote:
>
> Any attempt to time a builtin generates no output whatsoever. No timings, no error message.The timed command executes in the current shell and has its usual side-effects, but the time itself does nothing.
This was last discussed in users/28740 and subsequent thread ...
>> The OS facility that reports time statistics only works for a parent
>> process to read the stats of a child. To work on builtins, we'd have
>> to rewrite that internally
That isn't quite accurate ... what we'd have to do is call RUSAGE_SELF
both before and after the builtin and subtract the former from the
latter, there's no (other) facility to get only the internal time
delta.
next prev parent reply other threads:[~2024-08-15 18:53 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-08-15 13:15 Mark J. Reed
2024-08-15 18:52 ` Bart Schaefer [this message]
2024-08-15 22:08 ` Mark J. Reed
2024-08-16 19:20 ` Bart Schaefer
2024-09-04 0:27 ` Bart Schaefer
2024-09-04 14:32 ` Jun. T
2024-09-05 17:29 ` Jun. T
2024-09-05 23:37 ` Bart Schaefer
2024-09-06 9:41 ` Jun T
2024-09-06 0:10 ` Bart Schaefer
2024-09-06 9:52 ` Jun T
2024-09-06 19:13 ` Bart Schaefer
2024-09-14 2:10 ` PATCH: " Bart Schaefer
2024-09-20 7:46 ` Oliver Kiddle
2024-09-22 0:59 ` Bart Schaefer
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