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Sun, 27 Mar 2022 21:35:00 -0700 (PDT) Received: from sachi ([172.58.43.168]) by smtp.googlemail.com with ESMTPSA id y12-20020a17090a784c00b001c6bdafc995sm16297168pjl.3.2022.03.27.21.34.59 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 27 Mar 2022 21:35:00 -0700 (PDT) To: cc: Subject: Parallel processing X-Mailer: MH-E 8.6+git; GNU Mailutils 3.13; GNU Emacs 27.2 Date: Sun, 27 Mar 2022 21:34:57 +4100 From: "jdh" Message-ID: <20220327213457.11481@sachi> User-Agent: MH (GNU Mailutils 3.13) X-Seq: 27634 Archived-At: X-Loop: zsh-users@zsh.org Errors-To: zsh-users-owner@zsh.org Precedence: list Precedence: bulk Sender: zsh-users-request@zsh.org X-no-archive: yes List-Id: List-Help: List-Subscribe: List-Unsubscribe: List-Post: List-Owner: List-Archive: "Not every program reacts well to parallel processing, for example conventional (non-SSD) disk IO becomes magnitudes slower if two processes read/write disk at the same time because the disk head needs to keep jumping back and forth between different areas of the HDD to serve multiple processes." This is not in the zsh topic realm but consideration should be given to avoid hard disk drive thrashing. dh