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Wed, 27 Apr 2022 08:17:33 -0700 (PDT) MIME-Version: 1.0 References: <20220425192036.p6awbyro2a2lp7bq@chazelas.org> <1592299421.100566.1650961915601@mail2.virginmedia.com> <20220427141117.6cn4ca72kexv622s@chazelas.org> <732728967.75854.1651072065633@mail2.virginmedia.com> In-Reply-To: <732728967.75854.1651072065633@mail2.virginmedia.com> From: Bart Schaefer Date: Wed, 27 Apr 2022 08:17:21 -0700 Message-ID: Subject: Re: ZSH performance regression in 5.8.1.2-test To: Peter Stephenson Cc: Zsh hackers list Content-Type: text/plain; charset="UTF-8" X-Seq: 50120 Archived-At: X-Loop: zsh-workers@zsh.org Errors-To: zsh-workers-owner@zsh.org Precedence: list Precedence: bulk Sender: zsh-workers-request@zsh.org X-no-archive: yes List-Id: List-Help: List-Subscribe: List-Unsubscribe: List-Post: List-Owner: List-Archive: On Wed, Apr 27, 2022 at 8:08 AM Peter Stephenson wrote: > > > I think the idea was to cache the result of the "can we lseek" test, > > Yes, I wouldn't expect that to change until we reopen the channel, > which is detectable locally within input.c as we need to set up > the pointers at the same time. All assignments to SHIN are in init.c, so it'd probably at least be necessary to pass an argument to shinbufalloc() et al.