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That's all we know. X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: guix-devel@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "Development of GNU Guix and the GNU System distribution." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: guix-devel , Luis Felipe Errors-To: guix-devel-bounces+larch=yhetil.org@gnu.org Sender: "Guix-devel" X-Scanner: scn0 Authentication-Results: aspmx1.migadu.com; dkim=fail (rsa verify failed) header.d=gmail.com header.s=20161025 header.b=uLJWVRp/; dmarc=fail reason="SPF not aligned (relaxed)" header.from=gmail.com (policy=none); spf=pass (aspmx1.migadu.com: domain of guix-devel-bounces@gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=guix-devel-bounces@gnu.org X-Spam-Score: 1.09 X-TUID: WMA3hv4aNTMP Dear, On Sun, 18 Oct 2020 at 05:42, Maxim Cournoyer wrote: > I also experience poor performance on profile generation when using Guix > on an older machine equipped with spinning disks. This kind of > operation appears to be IO hungry, and performs much faster on solid > state drives (SSDs). > > I've opened an issue for the poor performance on spinning drives here: > https://issues.guix.gnu.org/44053. I am the first who complains about slowness (see patches for "guix search" :-)). However, I am not able to reproduce even on an older machine equipped with spinning disks because it depends on the number of packages living in the profiles. Therefore, the trick is to split all the big profiles into smaller ones. See for reference: . All the best, simon