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Tue, 13 Aug 2024 12:25:34 -0700 (PDT) MIME-Version: 1.0 References: <87ikw5byod.fsf@gnu.org> In-Reply-To: <87ikw5byod.fsf@gnu.org> From: Hazel Cooney Date: Tue, 13 Aug 2024 13:25:21 -0600 Message-ID: Subject: Re: I'm a new contributor and would like advice To: =?UTF-8?Q?Ludovic_Court=C3=A8s?= Cc: guix-devel@gnu.org Content-Type: multipart/alternative; boundary="000000000000d3f9d2061f959273" Received-SPF: pass client-ip=2607:f8b0:4864:20::62d; envelope-from=evancooney71@gmail.com; helo=mail-pl1-x62d.google.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 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_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: guix-devel@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Development of GNU Guix and the GNU System distribution." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guix-devel-bounces+larch=yhetil.org@gnu.org Sender: guix-devel-bounces+larch=yhetil.org@gnu.org X-Migadu-Flow: FLOW_IN X-Migadu-Country: US X-Migadu-Queue-Id: 8D83E3557C X-Migadu-Scanner: mx12.migadu.com X-Migadu-Spam-Score: -9.78 X-Spam-Score: -9.78 X-TUID: 1FPcMHOGf8eu --000000000000d3f9d2061f959273 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Ok, I'll try to reproduce with as few packages as I can. I'm working on a script to test performance of only the "building profile" stage with various numbers of packages. I use an relatively new NVME SSD from Samsung. I got it a couple years ago. I'll have to check back on its read/write performance, I don't remember the model number. I'm sorry for taking a while to respond, I've been on vacation for the last week and haven't been checking my email. Also, I know my email says it was sent from "Hazel Cooney" but I don't go by that name anymore. I would prefer it if you called me Evan. Thank you, Evan Cooney On Mon, Aug 12, 2024, 8:31 AM Ludovic Court=C3=A8s wrote: > Hi Hazel, > > Hazel Cooney skribis: > > > before finishing. It said it was "building profile with (some number) > packages", and it took at least 2 minutes on that stage only no > > matter the size of the package. > > This is surprisingly long, indeed. > > Do you use an SSD or a rotating disk? As Felix mentioned, the latter is > likely to be quite slow for these operations. > > Also, the duration of this operation depends on the number of packages > in the profile, and more or less on the number of files involved. It > would help if you could reproduce the slowness with as few packages as > possible to see if we can identify some pathological behavior. > > Thanks, > Ludo=E2=80=99. > --000000000000d3f9d2061f959273 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable

Ok, I'll try to reproduce with as few packages as I can.= I'm working on a script to test performance of only the "building= profile" stage with various numbers of packages.
I use an relatively new NVME SSD from Samsung. I got it a couple years ago.= I'll have to check back on its read/write performance, I don't rem= ember the model number. I'm sorry for taking a while to respond, I'= ve been on vacation for the last week and haven't been checking=C2=A0 m= y email.

Also, I know my email says it was sent from "Hazel Coon= ey" but I don't go by that name anymore. I would prefer it if you = called me Evan.

Thank you,
Evan Cooney


On Mon= , Aug 12, 2024, 8:31 AM Ludovic Court=C3=A8s <ludo@gnu.org> wrote:
H= i Hazel,

Hazel Cooney <evancooney71@gmail.com> skribis:

> before finishing. It said it was "building profile with (some num= ber) packages", and it took at least 2 minutes on that stage only no > matter the size of the package.

This is surprisingly long, indeed.

Do you use an SSD or a rotating disk?=C2=A0 As Felix mentioned, the latter = is
likely to be quite slow for these operations.

Also, the duration of this operation depends on the number of packages
in the profile, and more or less on the number of files involved.=C2=A0 It<= br> would help if you could reproduce the slowness with as few packages as
possible to see if we can identify some pathological behavior.

Thanks,
Ludo=E2=80=99.
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