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Fri, 18 Sep 2026 00:31:02 -0700 (PDT) Received: from draig.lan ([185.124.0.156]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-49fc8dde38fsm18880275e9.1.2026.09.18.00.31.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 18 Sep 2026 00:31:00 -0700 (PDT) Received: from draig (localhost [IPv6:::1]) by draig.lan (Postfix) with ESMTP id CF4675F8B4; Fri, 18 Sep 2026 08:30:59 +0100 (BST) From: =?utf-8?Q?Alex_Benn=C3=A9e?= To: Pierrick Bouvier Cc: Richard Henderson , qemu-devel@nongnu.org Subject: Re: [PATCH v5 11/17] tests/docker: strip remaining caching logic from docker.py In-Reply-To: <26dff9eb-b48b-4fd1-822a-806c3e83aadd@oss.qualcomm.com> (Pierrick Bouvier's message of "Thu, 17 Sep 2026 15:25:20 -0700") References: <20260917165602.3405537-1-alex.bennee@linaro.org> <20260917165602.3405537-12-alex.bennee@linaro.org> <87fqz77dln.fsf@draig.linaro.org> <7a587ac5-b7bb-4c69-a022-3e65e49070c6@oss.qualcomm.com> <96e3f93f-a12f-4d18-badd-2ea60efc715b@linaro.org> <26dff9eb-b48b-4fd1-822a-806c3e83aadd@oss.qualcomm.com> User-Agent: mu4e 1.14.4-pre3; emacs 30.1 Date: Fri, 18 Sep 2026 08:30:59 +0100 Message-ID: <87a4pf6moc.fsf@draig.linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Received-SPF: pass client-ip=2a00:1450:4864:31::10; envelope-from=alex.bennee@linaro.org; helo=mail-wm2-x10.google.com 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, 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: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Pierrick Bouvier writes: > On 9/17/2026 3:18 PM, Richard Henderson wrote: >> On 9/17/26 12:00, Pierrick Bouvier wrote: >>> On 9/17/2026 2:49 PM, Alex Benn=C3=A9e wrote: >>>> how much time? it flies past when I run a rebuild. >>>> >>> >>> For a no-op tcg-tests build (i.e. with tests already built): >>> >>> - With current patch: >>> time ninja -C tcg-tests >>> ... >>> verbose pull and build >>> 320 lines of output >>> ... >>> real=C2=A0=C2=A0=C2=A0 0m15.817s >>> user=C2=A0=C2=A0=C2=A0 0m1.342s >>> sys=C2=A0=C2=A0=C2=A0=C2=A0 0m0.840s =E2=9C=97 time ninja [1/114] Generating qemu-version.h with a custom command (wrapped by meson= to capture output) ________________________________________________________ Executed in 515.16 millis fish external usr time 433.82 millis 968.00 micros 432.85 millis sys time 86.05 millis 253.00 micros 85.80 millis Not sure whats going on there then. The whole tcg suite completes in under a minute (and would be shorter if i386-linux-user-test-i386-fprem and riscv64-softmmu-plugin-discons-with-interruptedmemory where in the thorough test suite). >>=20 >> The variance from the middle of the pacific ocean, and associated >> network latency, is between 20 and 27 seconds. >>=20 >> Amusingly, with the network actively disconnected (airplane mode), the >> no-op build completes in 1 to 2 seconds. >> > > Funny, on my side if hangs a long time (timeout 30s), then retry 3 times > per image. I tried it on WSL on my windows laptop. > >>=20 >> r~ --=20 Alex Benn=C3=A9e Virtualisation Tech Lead @ Linaro