Path: csiph.com!news.neodome.net!3.eu.feeder.erje.net!feeder.erje.net!newsfeed.xs4all.nl!newsfeed9.news.xs4all.nl!bofh.it!news.nic.it!robomod From: piorunz Newsgroups: linux.debian.user Subject: Re: nvme SSD and poor performance Date: Fri, 20 Aug 2021 18:30:01 +0200 Message-ID: References: X-Original-To: debian-user@lists.debian.org X-Mailbox-Line: From debian-user-request@lists.debian.org Fri Aug 20 16:22:28 2021 Old-Return-Path: X-Amavis-Spam-Status: No, score=-5.501 tagged_above=-10000 required=5.3 tests=[BAYES_00=-2, BODY_8BITS=1.5, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, FREEMAIL_FROM=0.001, LDO_WHITELIST=-5, NICE_REPLY_A=-0.001, RCVD_IN_MSPIKE_H2=-0.001] autolearn=ham autolearn_force=no X-Policyd-Weight: using cached result; rate:hard: -5.5 X-Ui-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.13.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-GB Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:pz4KDzLZCJbNewpfawXfQkLINIOX+FDoFs9ulcqTWrBNlbQ8fip uT1ALnOa0a9JITIP5pgRhpHFbfaxrH4Vi2BZyHnrV3Og/4oz2V0cZcR3iSHM+9nOkXp6dnJ cy5xOwDIdOvVIkyeadKZr1p07zMITDyqRKIVFoBUJDvwfrBih2qQ9UKDFiEGYfdviX0ePjP tjQYD9dfAiIoLVUbpGhrg== X-Ui-Out-Filterresults: notjunk:1;V03:K0:MrQVj0RJkyc=:qIVnpluQt3hIkyDqGLHifC 1ZYT01LmyDAwjn0WAkzpzUzW/+oHC4fTEEbdJwlyYf+BRpYcTVUXddSQLxnvFodI2DX7OsXto ch6BkUf1vOH8ElktsuhQMyjXZG0S0k655MSsPUFns2trAIuisDg1AngRmhJpJMYPh2y4g3tSU xfLXSQMlHDT9wz3LZud8xg2Tv2CwnlfVLSuTn6Ng9IpL9JHkq3incwOoHR3vzsOJqXEmy2H8V wErky7DohFTHEc8+ySEDWExJYhDk5QTdWKKcq1twPYSW+m4iVYRpplkVH+zCIGxjB5EY6z6BW 5uzibHXX3hutyMz01T8T8cOescfjE2fAddSq1i7GpcK5GivCV/0/pimKVezq4K6m+jzAIuyVr XAuz1tXF8Y/WLlMo/dKGsQ1Y08DnamBDLPyKjnt6LDavekBZzG20STRXH47h9763PR3jwI0p3 ELhvw+uPRmO4tlwjn625TyRqdDkfaEorDC5xsRq90e4ZubwLCsgSikr1O3JnwlBu9kQmrfhgx TnPSJs7M+uYkCrATVIUZLQebRYRY3o2ivcM7HEBNLWznBJt/PhGkoYEBMskJBjN2/2qv0fFc0 GRl9bRM548vaxQ4+SKKJxvu2OyFR/1uqROIMk6pHdBGHJTr2U1leoLe3kK6LOidwcta0qyzQh xcUfTwxyCr9Bu+xILPLehbyxH1vAlCJYd7OT9UMlPoxO85B3CIDB8YhghX6SL1FpwbRVc6VzD bOdvmEvR4Z1HcV/Yn4vbIltV+jQUrKK2ACsyDM+YGVb15gKxelyayCI6GET9zjI6acAgG2Tmk 7SjlssWtOD7Nx53MayPBowDr3isCKpCtmwRL8z7kuvEoeLi+DrFoSpJl2DIA2S7nbTF0BAgvU N3ab6jFzTy1jkvSzOJ+UyT8GFuOSJ4tSCgRUUx5KEyYAZ3K7ZzCCe+pmGZjHIssHh0yVdVcfa /ykJ3CFgjgaVIvK/80cV182dCqeKtz1q+1P5ptklI34uz08uqNzwG+khhQ7AXYQa18ufIRPwh z8BU5VrRSUjXA5j6EoaJ+iolAoXdpBadHp6evXJ5lPZ+8KLXbWnom0ZC2A3qIal+YrP45Zof+ yKG+o2qIevd4rpbtpiWksXyasmZu7zPuk1ICiBs9lfkT3adrTiYjlpxMA== X-Mailing-List: archive/latest/779771 List-ID: List-URL: List-Archive: https://lists.debian.org/msgid-search/3a92d032-5738-22ea-c924-def61a5e1346@gmx.com Approved: robomod@news.nic.it Lines: 31 Organization: linux.* mail to news gateway Sender: robomod@news.nic.it X-Original-Date: Fri, 20 Aug 2021 17:22:12 +0100 X-Original-Message-ID: <3a92d032-5738-22ea-c924-def61a5e1346@gmx.com> X-Original-References: <9b0c4e1b-8629-b401-a0bf-ed1f4c0f826a@univ-lorraine.fr> <07bfb580-c23c-0241-eaab-170384f04f11@debianlists.mobilxpress.net> Xref: csiph.com linux.debian.user:239091 On 17/08/2021 15:03, Marco M=C3=B6ller wrote: > I have no experience with SSD, but running my Debian Desktop from a USB > Memory Stick since years, please allow me to share information which > supports the suggestion of Linux-Fan to also investigate if there is > extraordinary I/O taking place and maybe could be avoided: > In the past I found extreme(!) I/O to be produced by Firefox, when it is > writing its cache, and when it is writing its session restore > information. These writes to my observation occure all the time, kind of > nonstop! I could get it very satisfactorily reduced by applying a tool > called "Profile Sync Daemon" (psd) from package "profile-sync-daemon". > While it is packaged for Debian, as a starting point to study its > documentation I suggest to better look it up in the Arch Linux Wiki. Firefox setting which determines how often write session data to disk is: browser.sessionstore.interval Default setting is value of 15000 =3D 15 seconds, not that bad. But still I changed that to 10 minutes (value of 600000). If I lose an open tab once in a year when Firefox crashes, so be it. To be honest, I haven't seen Fx crash in a year, or more. =2D- With kindest regards, piorunz. =E2=A2=80=E2=A3=B4=E2=A0=BE=E2=A0=BB=E2=A2=B6=E2=A3=A6=E2=A0=80 =E2=A3=BE=E2=A0=81=E2=A2=A0=E2=A0=92=E2=A0=80=E2=A3=BF=E2=A1=81 Debian - T= he universal operating system =E2=A2=BF=E2=A1=84=E2=A0=98=E2=A0=B7=E2=A0=9A=E2=A0=8B=E2=A0=80 https://ww= w.debian.org =E2=A0=88=E2=A0=B3=E2=A3=84=E2=A0=80=E2=A0=80=E2=A0=80=E2=A0=80