{"id":121915,"date":"2025-02-13T20:22:13","date_gmt":"2025-02-13T18:22:13","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/obsuzhdenie-uvelicheniya-chastoty-tajmera-v-yadre-linux-do-1000hz-po-umolchaniyu"},"modified":"2025-02-13T20:22:13","modified_gmt":"2025-02-13T18:22:13","slug":"obsuzhdenie-uvelicheniya-chastoty-tajmera-v-yadre-linux-do-1000hz-po-umolchaniyu","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sq\/blog\/news\/obsuzhdenie-uvelicheniya-chastoty-tajmera-v-yadre-linux-do-1000hz-po-umolchaniyu","title":{"rendered":"Diskutimi p\u00ebr rritjen e frekuenc\u00ebs s\u00eb timerit n\u00eb b\u00ebrtham\u00ebn Linux n\u00eb 1000Hz si parazgjedhje","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Nj\u00eb inxhinier nga kompania Google propozoi t\u00eb rritet frekuenca e gjenerimit t\u00eb nd\u00ebrprerjeve nga timeri n\u00eb b\u00ebrtham\u00ebn Linux n\u00eb 1000Hz si standard, i cili do t\u00eb \u00e7onte n\u00eb rritjen e frekuenc\u00ebs s\u00eb ndryshimit t\u00eb detyrave dhe zvog\u00eblimin e kuot\u00ebs s\u00eb koh\u00ebs n\u00eb planifikuesin e detyrave. Aktualisht, si standard p\u00ebrdoret 250Hz, si nj\u00eb kompromis midis performanc\u00ebs, vonesave dhe konsumit t\u00eb energjis\u00eb. <\/p>\n

Me p\u00ebrdorimin e ekran\u00ebve me frekuenc\u00eb rifreshimi 120Hz, tipike p\u00ebr kompjuter\u00ebt dhe pajisjet mobile moderne, me frekuenc\u00ebn e timerit 250Hz, pasakt\u00ebsia e kuot\u00ebs s\u00eb koh\u00ebs arrin gati gjysm\u00ebn e koh\u00ebs s\u00eb korniz\u00ebs, gj\u00eb q\u00eb zvog\u00eblon efikasitetin e shp\u00ebrndarjes s\u00eb burimeve dhe nuk lejon arritjen e nj\u00eb raporti optimal t\u00eb performanc\u00ebs ndaj konsumit t\u00eb energjis\u00eb. Konsumi i energjis\u00eb i sistemeve me frekuenc\u00eb t\u00eb ul\u00ebt timeri mund t\u00eb rezultoj\u00eb m\u00eb i lart\u00eb, pasi mekanizmi DVFS (Dynamic Voltage and Frequency Scaling) p\u00ebrdor nj\u00eb strategji m\u00eb agresive p\u00ebr zgjedhjen e frekuenc\u00ebs, n\u00eb m\u00ebnyr\u00eb q\u00eb t\u00eb mos ngadal\u00ebsoj\u00eb ekzekutimin e detyrave. <\/p>\n

Ndodhin situata kur nj\u00eb detyr\u00eb ka p\u00ebrfunduar operacionet e d\u00ebshiruara, q\u00eb k\u00ebrkonin llogaritje aktive, por procesori vazhdon t\u00eb punoj\u00eb me nj\u00eb frekuenc\u00eb t\u00eb lart\u00eb p\u00ebr shkak t\u00eb kufizimit t\u00eb kuot\u00ebs s\u00eb koh\u00ebs, e cila ende nuk ka p\u00ebrfunduar. Rritja e frekuenc\u00ebs s\u00eb ndryshimit t\u00eb detyrave mund t\u00eb \u00e7oj\u00eb n\u00eb zvog\u00eblimin e konsumit t\u00eb energjis\u00eb p\u00ebr shkak t\u00eb rritjes s\u00eb efikasitetit t\u00eb menaxhimit dinamik t\u00eb frekuenc\u00ebs (DVFS), shp\u00ebrndarjes m\u00eb t\u00eb sakt\u00eb t\u00eb intervaleve nga planifikuesi i detyrave, p\u00ebrdit\u00ebsimit m\u00eb t\u00eb shpesht\u00eb t\u00eb statistikave t\u00eb ngarkes\u00ebs s\u00eb CPU-s\u00eb dhe zvog\u00eblimit t\u00eb koh\u00ebs s\u00eb q\u00ebndrimit t\u00eb detyrave n\u00eb gjendje pritjeje. <\/p>\n

Nj\u00eb inxhinier tjet\u00ebr nga Google propozoi q\u00eb frekuenca e timerit t\u00eb mbetet ashtu si\u00e7 \u00ebsht\u00eb (250Hz), pasi rritja e frekuenc\u00ebs s\u00eb gjenerimit t\u00eb nd\u00ebrprerjeve t\u00eb timerit mund t\u00eb \u00e7oj\u00eb n\u00eb rritjen e konsumit t\u00eb energjis\u00eb n\u00eb pajisje me fuqi t\u00eb ul\u00ebt, si\u00e7 jan\u00eb bordet p\u00ebr internetin e gj\u00ebrave. Sipas vler\u00ebsimeve t\u00eb tij, me nj\u00eb frekuenc\u00eb prej 1000Hz, madje edhe n\u00eb pajisje t\u00eb drejtuara nga Android, n\u00eb disa raste \u00ebsht\u00eb regjistruar nj\u00eb rritje prej 7% t\u00eb konsumit t\u00eb energjis\u00eb nga procesori. Me rritjen e frekuenc\u00ebs s\u00eb timerit gjithashtu v\u00ebrehet nj\u00eb zgjedhje m\u00eb e shpesht\u00eb e CPU-s\u00eb, pasi me frekuenc\u00ebn 250Hz, timer\u00ebt t\u00eb cil\u00ebt jan\u00eb vendosur n\u00eb intervale t + 1 ms, t + 2 ms, t + 3 ms dhe t + 4 ms do t\u00eb grumbullohen dhe do t\u00eb \u00e7ojn\u00eb n\u00eb nj\u00eb zgjedhje, nd\u00ebrsa n\u00eb rastin e 1000Hz do t\u00eb ndodhin kat\u00ebr zgjedhje t\u00eb ve\u00e7anta. <\/p>\n

Burimi Phoronix kreu nj\u00eb krahasim t\u00eb performanc\u00ebs s\u00eb PCs me CPU AMD Ryzen 9 9950X. Konfigurimi me 1000Hz doli m\u00eb i shpejt\u00eb n\u00eb testet Llama.cpp, nginx, SuperTuxKart, Selenium dhe gjat\u00eb matjes s\u00eb koh\u00ebs s\u00eb nd\u00ebrtimit t\u00eb kernelit. N\u00eb testet Darktable, PostgreSQL, Unvanquished, Xonotic, Blender, SVT-AV1, RawTherapee, performanca ishte m\u00eb e lart\u00eb me vendosjen 250Hz. Me 1000Hz, mesatarja e konsumit t\u00eb energjis\u00eb ishte 144.2 W, minimale 0.18 W, maksimale 202.13 W, nd\u00ebrsa me 250Hz: mesatarja 144.37 W, minimale 0.07 W, maksimale 202 W.

\"Diskutimi<\/center>
\n
Burimi: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0418\u043d\u0436\u0435\u043d\u0435\u0440 \u0438\u0437 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0438 Google \u043f\u0440\u0435\u0434\u043b\u043e\u0436\u0438\u043b \u043f\u043e\u0432\u044b\u0441\u0438\u0442\u044c \u0447\u0430\u0441\u0442\u043e\u0442\u0443 \u0433\u0435\u043d\u0435\u0440\u0430\u0446\u0438\u0438 \u043f\u0440\u0435\u0440\u044b\u0432\u0430\u043d\u0438\u0439 \u043e\u0442 \u0442\u0430\u0439\u043c\u0435\u0440\u0430 \u0432 \u044f\u0434\u0440\u0435 Linux \u0434\u043e 1000Hz \u043f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e, \u0447\u0442\u043e \u043f\u0440\u0438\u0432\u0435\u0434\u0451\u0442 \u043a \u0443\u0432\u0435\u043b\u0438\u0447\u0435\u043d\u0438\u044e \u0447\u0430\u0441\u0442\u043e\u0442\u044b \u043f\u0435\u0440\u0435\u043a\u043b\u044e\u0447\u0435\u043d\u0438\u044f \u0437\u0430\u0434\u0430\u0447 \u0438 \u0443\u043c\u0435\u043d\u044c\u0448\u0435\u043d\u0438\u044e \u043a\u0432\u0430\u043d\u0442\u0430 \u0432\u0440\u0435\u043c\u0435\u043d\u0438 \u0432 \u043f\u043b\u0430\u043d\u0438\u0440\u043e\u0432\u0449\u0438\u043a\u0435 \u0437\u0430\u0434\u0430\u0447. \u0412 \u0434\u0430\u043d\u043d\u044b\u0439 \u043c\u043e\u043c\u0435\u043d\u0442 \u043f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442\u0441\u044f 250Hz, \u043a\u0430\u043a \u043d\u0435\u043a\u0438\u0439 \u043a\u043e\u043c\u043f\u0440\u043e\u043c\u0438\u0441\u0441 \u043c\u0435\u0436\u0434\u0443 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u044c\u044e, \u0437\u0430\u0434\u0435\u0440\u0436\u043a\u0430\u043c\u0438 \u0438 \u044d\u043d\u0435\u0440\u0433\u043e\u043f\u043e\u0442\u0440\u0435\u0431\u043b\u0435\u043d\u0438\u0435\u043c. \u041f\u0440\u0438 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0438 \u0434\u0438\u0441\u043f\u043b\u0435\u0435\u0432 \u0441 \u0447\u0430\u0441\u0442\u043e\u0442\u043e\u0439 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