{"id":138902,"date":"2025-07-10T11:11:56","date_gmt":"2025-07-10T09:11:56","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/sravnenie-proizvoditelnosti-seansov-kde-plasma-na-baze-x11-i-wayland"},"modified":"2025-07-10T11:11:56","modified_gmt":"2025-07-10T09:11:56","slug":"sravnenie-proizvoditelnosti-seansov-kde-plasma-na-baze-x11-i-wayland","status":"publish","type":"post","link":"https:\/\/prohoster.info\/da\/blog\/news\/sravnenie-proizvoditelnosti-seansov-kde-plasma-na-baze-x11-i-wayland","title":{"rendered":"Sammenligning af ydeevne for KDE Plasma sessioner baseret p\u00e5 X11 og Wayland","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Igor Ljubuncic, der indtil 2024 var ansvarlig for produkter relateret til h\u00f8jtydende computing i Canonical, har udf\u00f8rt pr\u00e6stations- og energiforbrugstest af KDE Plasma 6.4-sessioner baseret p\u00e5 X11 og Wayland. I slutningen af juni offentliggjorde Igor en gennemgang af funktionerne i KDE Plasma 6.4, hvor han konkluderede, at sessionen baseret p\u00e5 Wayland pr\u00e6sterer d\u00e5rligere og l\u00e6gger mere belastning p\u00e5 CPU og GPU sammenlignet med sessionen baseret p\u00e5 X11. I en ny artikelserie fors\u00f8gte Igor at teste ydeevnen af begge sessioner mere grundigt.    <\/p>\n<p>Det blev oprindeligt bem\u00e6rket, at under testene p\u00e5 Lenovo IdeaPad 3 med integreret AMD GPU var CPU'en konstant belastet med cirka 8% i Wayland-sessionen, uanset CPU-aktiviteten, og hvert 2-3 sekund var der et spike, der fuldt ud belastede GPU'en. I X11-sessionen var belastningen p\u00e5 CPU og GPU under inaktivitet nul. Yderligere kontrol med v\u00e6rkt\u00f8jet radeontop viste et h\u00f8jere ressourceforbrug i Wayland-sessionen, is\u00e6r n\u00e5r profilen \u201eColor Accuracy\u201c blev aktiveret i sk\u00e6rmindstillingerne. Tabellen nedenfor viser den gennemsnitlige GPU-belastning i procent for et lignende s\u00e6t k\u00f8rende applikationer og indsamling af data hvert sekund i 60 sekunder.    <center>  \t\t\t  \t\t\t\t  \t\t\t\t\t  \t\t\t\t\t\tMetric  \t\t\t\t\t\tWayland +  \t\t\t\t\t\tenergi effektivitet  \t\t\t\t\t\tWayland +  \t\t\t\t\t\tfarve n\u00f8jagtighed  \t\t\t\t\t\tX11  \t\t\t\t\t  \t\t\t\t\t  \t\t\t\t\t\tGrafik r\u00f8r  \t\t\t\t\t\t3.31  \t\t\t\t\t\t4.03  \t\t\t\t\t\t2.47  \t\t\t\t\t  \t\t\t\t\t  \t\t\t\t\t  \t\t\t\t\t\tVertex Grouper + Tesselator  \t\t\t\t\t\t0.33  \t\t\t\t\t\t0.3  \t\t\t\t\t\t0.11  \t\t\t\t\t  \t\t\t\t\t  \t\t\t\t\t\tTexture Addresser  \t\t\t\t\t\t0.90  \t\t\t\t\t\t2.03  \t\t\t\t\t\t0.78  \t\t\t\t\t  \t\t\t\t\t  \t\t\t\t\t\tShader Export  \t\t\t\t\t\t2.24  \t\t\t\t\t\t3.03  \t\t\t\t\t\t1.42  \t\t\t\t\t  \t\t\t\t\t  \t\t\t\t\t\tSequencer Instruction Cache  \t\t\t\t\t\t0.06  \t\t\t\t\t\t0.08  \t\t\t\t\t\t0.03  \t\t\t\t\t  \t\t\t\t\t  \t\t\t\t\t\tShader Interpolator  \t\t\t\t\t\t2.58  \t\t\t\t\t\t3.31  \t\t\t\t\t\t1.61  \t\t\t\t\t  \t\t\t\t\t  \t\t\t\t\t\tScan Converter  \t\t\t\t\t\t2.54  \t\t\t\t\t\t3.18  \t\t\t\t\t\t1.54  \t\t\t\t\t  \t\t\t\t\t  \t\t\t\t\t\tPrimitive Assembly  \t\t\t\t\t\t0.32  \t\t\t\t\t\t0.30  \t\t\t\t\t\t0.11  \t\t\t\t\t  \t\t\t\t\t  \t\t\t\t\t\tDepth Block  \t\t\t\t\t\t2.51  \t\t\t\t\t\t3.18  \t\t\t\t\t\t1.53  \t\t\t\t\t  \t\t\t\t\t  \t\t\t\t\t\tColor Block  \t\t\t\t\t\t2.51  \t\t\t\t\t\t3.18  \t\t\t\t\t\t1.54  \t\t\t\t\t  \t\t\t\t\t  \t\t\t\t\t\tVRAM  \t\t\t\t\t\t26.39  \t\t\t\t\t\t28.44  \t\t\t\t\t\t22.36  \t\t\t\t\t  \t\t\t\t\t  \t\t\t\t\t\tGTT  \t\t\t\t\t\t3.92  \t\t\t\t\t\t3.98  \t\t\t\t\t\t3.85  \t\t\t\t\t  \t\t\t\t\t  \t\t\t\t\t\tHukommelseshastighed  \t\t\t\t\t\t33.33  \t\t\t\t\t\t54.90  \t\t\t\t\t\t54.81  \t\t\t\t\t  \t\t\t\t\t  \t\t\t\t\t\tShader Clock  \t\t\t\t\t\t16.67  \t\t\t\t\t\t16.67  \t\t\t\t\t\t16.67  \t\t\t\t\t  \t\t\t\t  \t\t\t  \t\t\t  <\/center>    <\/p>\n<p>Test af energiforbruget med v\u00e6rkt\u00f8jet powertop viste ogs\u00e5 fordelene ved X11-sessionen: energiforbruget for Wayland-sessionen under flere m\u00e5linger var 6.09 watt, Wayland med profilen \u201eColor Accuracy\u201c 6.05-6.08 watt, mens X11 var 5.67-5.87 watt. Generelt konkluderes det, at X11-sessionen bruger 3-7% mindre batterikapacitet end Wayland.    <\/p>\n<p>Kontrol af CPU-belastningen med v\u00e6rkt\u00f8jet vmstat viste, at X11-sessionen brugte 1.83% CPU under inaktivitet, mens Wayland brugte 1.97% (2.1% med profilen Color Accuracy). V\u00e6rkt\u00f8jet blev k\u00f8rt p\u00e5 nyligt oprettede sessioner i terminalen Konsole, hvor gennemsnittet blev beregnet ved sekund\u00e6r sampling i 60 sekunder. CPU-belastningen ved brug af Wayland viste sig at v\u00e6re 7.6% h\u00f8jere (14% i Color Accuracy-tilstand) end ved brug af X11-sessionen. I Wayland-sessionen blev der registreret 25% flere afbrydelser og 48% flere kontekstskift.    <center>    \t\t\t\t  \t\t\t\t\t  \t\t\t\t\t\tMetrik\t\t\t\t\t\tWayland +\t\t\t\t\t\tstr\u00f8m effektivitet\t\t\t\t\t\tWayland +\t\t\t\t\t\tfarven\u00f8jagtighed\t\t\t\t\t\tX11\t\t\t\t\t  \t\t\t\t\t  \t\t\t\t\t\tGennemsnitligt antal opgaver i runqueue\t\t\t\t\t\t0.18\t\t\t\t\t\t0.35\t\t\t\t\t\t0.07\t\t\t\t\t  \t\t\t\t\t  \t\t\t\t\t\tTotale opgaver i runqueue\t\t\t\t\t\t11\t\t\t\t\t\t21\t\t\t\t\t\t4\t\t\t\t\t  \t\t\t\t\t  \t\t\t\t\t\tAfbrydelser (in)\t\t\t\t\t\t1188\t\t\t\t\t\t1173\t\t\t\t\t\t937\t\t\t\t\t  \t\t\t\t\t  \t\t\t\t\t\tKontekstskift (cs)\t\t\t\t\t\t1195\t\t\t\t\t\t1208\t\t\t\t\t\t803\t\t\t\t\t  \t\t\t\t\t  \t\t\t\t\t\tInaktiv CPU % (id)\t\t\t\t\t\t98.03\t\t\t\t\t\t97.90\t\t\t\t\t\t98.17  \t\t\t\t\t  \t\t\t\t  \t\t\t  <\/center>      <\/p>\n<p>Ved hj\u00e6lp af v\u00e6rkt\u00f8jet perf blev der derefter udf\u00f8rt en analyse af kald under inaktivitet. KWin_wayland brugte cirka 1% (1.5%) af CPU-tiden, mens KWin_X11 brugte 0.44%. Adgangene til amdgpu udgjorde 0.77% (1%) for Wayland og 0.65% for X11. I inaktivitet blev der udf\u00f8rt cirka det dobbelte antal processorinstruktioner i Wayland-sessionen sammenlignet med X11-sessionen.    <center>  \t\t\t  \t\t\t\t  \t\t\t\t\t  \t\t\t\t\t\tMetric  \t\t\t\t\t\tWayland +  \t\t\t\t\t\tstr\u00f8meffektivitet  \t\t\t\t\t\tWayland +  \t\t\t\t\t\tfarvepr\u00e6cision  \t\t\t\t\t\tX11  \t\t\t\t\t  \t\t\t\t\t  \t\t\t\t\t\tCPU-clock (ms)  \t\t\t\t\t\t~543.000  \t\t\t\t\t\t~540.000  \t\t\t\t\t\t~527.000  \t\t\t\t\t  \t\t\t\t\t  \t\t\t\t\t\tKontekstskift  \t\t\t\t\t\t14.415 | 26.547\/s  \t\t\t\t\t\t16.120 | 29.864\/s  \t\t\t\t\t\t6.021 | 11.436\/s  \t\t\t\t\t  \t\t\t\t\t  \t\t\t\t\t\tCPU-migreringer  \t\t\t\t\t\t72 | 0.133\/s  \t\t\t\t\t\t139 | 0.258\/s  \t\t\t\t\t\t92 | 0.175\/s  \t\t\t\t\t  \t\t\t\t\t  \t\t\t\t\t\tSidetabningsfejl  \t\t\t\t\t\t201 | 0.37\/s  \t\t\t\t\t\t450 | 0.834\/s  \t\t\t\t\t\t75 | 0.142\/s  \t\t\t\t\t  \t\t\t\t\t  \t\t\t\t\t\tCyklusser  \t\t\t\t\t\t3.95B | 0.007 GHz  \t\t\t\t\t\t4.43B | 0.008 GHz  \t\t\t\t\t\t1.9B | 0.004 GHz  \t\t\t\t\t  \t\t\t\t\t  \t\t\t\t\t\tStoppede cyklusser frontend  \t\t\t\t\t\t452,5M | 11,47%  \t\t\t\t\t\t616,5M | 13,92%  \t\t\t\t\t\t213M | 11,13%  \t\t\t\t\t  \t\t\t\t\t  \t\t\t\t\t\tStoppede cyklusser backend  \t\t\t\t\t\t1,42B | 36,04%  \t\t\t\t\t\t1,45B | 32,82%  \t\t\t\t\t\t618M | 32,28%  \t\t\t\t\t  \t\t\t\t\t  \t\t\t\t\t\tInstruktioner  \t\t\t\t\t\t780M | 0.2\/cycle  \t\t\t\t\t\t1.82 stoppede\/cycle  \t\t\t\t\t\t901M | 0.2\/cycle  \t\t\t\t\t\t1.61 stoppede\/cycle  \t\t\t\t\t\t483M | 0.25\/cycle  \t\t\t\t\t\t1.28 stoppede\/cycle  \t\t\t\t\t  \t\t\t\t\t  \t\t\t\t\t\tGrene  \t\t\t\t\t\t168M | 309K\/s  \t\t\t\t\t\t193M | 358K\/s  \t\t\t\t\t\t104M | 197K\/s  \t\t\t\t\t  \t\t\t\t\t  \t\t\t\t\t\tGrenfejl  \t\t\t\t\t\t13,83%  \t\t\t\t\t\t13,36%  \t\t\t\t\t\t11,7%  \t\t\t\t\t  \t\t\t\t  \t\t\t  <\/center>    <\/p>\n<p>I den f\u00f8lgende artikel blev testene gentaget p\u00e5 en konfiguration med Kubuntu 24.04 med KDE Plasma 5.27 og b\u00e6rbaren Lenovo Y50-70 med Intel CPU og NVIDIA grafikkort. Resultaterne viste sig at v\u00e6re omtrent de samme \u2014 Wayland-sessionen var mindre effektiv end X11. Energiforbruget var 22.42 watt i Wayland og 21.86 i X11, CPU-belastningen i hviletilstand var 0.067 mod 0.050, antallet af kontekstskift var 43.835\/s mod 34.133\/s, belastningen ved afspilning af 4K-video i VLC var 12.54% mod 4.26%, og WebGL-ydeevnen var 16 FPS mod 29 FPS.    <\/p>\n<p>Ligeledes blev tilsvarende tests udf\u00f8rt p\u00e5 Lenovo IdeaPad 3 b\u00e6rbaren med AMD CPU\/GPU ved brug af den nyeste version fra projektet KDE Neon. I testen med 4K-videoafspilning i VLC var CPU-belastningen med X11 uden kompositing 3.72%, X11 med aktiv kompositing var 9.8%, Wayland med Color Accuracy (CA) var 25.71%, og Wayland i energibesparende tilstand (PE) var 31.51%. Dermed var CPU-belastningen ved brug af Wayland 8-10 gange h\u00f8jere end ved brug af X11.     <\/p>\n<p>Ved brug af Wayland blev der ogs\u00e5 registreret 5-16% flere afbrydelser. Forskellen i GPU-belastning var inden for 2%: Wayland (PE) var 56.33%, Wayland (CA) var 57.33%, X11 (Comp ON) var 57.98%, og X11 (Comp OFF) var 56.81%. N\u00e5r det g\u00e6lder energiforbrug, brugte Wayland mere energi med 8-49%: Wayland (PE) var 13.8-20.4 watt, Wayland (CA) var 13.8-14.1 watt, X11 (Comp ON) var 10.7-12.1 watt, og X11 (Comp OFF) var 11.4-14.9 watt. I testen af WebGL Aquarium var resultaterne for Wayland og X11 omtrent de samme: Wayland (PE) var 16-38 FPS, Wayland (CA) var 18-37 FPS, X11 (Comp ON) var 16-42 FPS, X11 (Comp OFF) var 21-42 FPS, men energiforbruget ved brug af Wayland var ca. 8% h\u00f8jere.    <\/p>\n<p>I sidste ende blev der udf\u00f8rt et endnu et eksperiment, denne gang d\u00e6kke GNOME fra Fedora 42 og KDE Plasma 6.4 eller KDE neon. Testen blev udf\u00f8rt p\u00e5 en Lenovo IdeaPad 3 med AMD CPU\/GPU.  <\/p>\n<ul>\n<li class=\"l\"> CPU-belastningen i hviletilstand: KDE X11 var 1.83%, KDE Wayland (PE) var 1.97%, KDE Wayland (CA) var 2.1%, GNOME Wayland var 2.2%.\n<li class=\"l\"> Energiforbruget i hviletilstand med et enkelt terminalvindue: KDE X11 var 5.67-5.87 watt, KDE Wayland (CA) var 6.05-6.08 watt, KDE Wayland (PE) var 6.09 watt, GNOME Wayland var 5.83-7.62 watt.\n<li class=\"l\"> GPU-belastningen i hviletilstand viste sig at v\u00e6re lavest i konfigurationen med GNOME Wayland, men forskellen kan forklares med de k\u00f8rende applikationer System Monitor og GNOME System Monitor.\n<li class=\"l\"> I statistikken indsamlet af v\u00e6rkt\u00f8jet perf blev der brugt mindst CPU-tid i konfigurationen baseret p\u00e5 GNOME.\n<li class=\"l\"> I testen af 4K 60FPS videovisning i VLC brugte GNOME-sessionen i Fedora lidt mindre CPU (29,6%) end KDE baseret p\u00e5 Wayland i Color Accuracy-tilstand (31,51%), men mere end KDE-sessionen baseret p\u00e5 X11 (9,8%) og Wayland i effektivt energiforbrug (25,71%).\n<li class=\"l\"> Ved vurdering af GPU-ressourceforbruget brugte GNOME-sessionen i Fedora mere GPU-ressourcer under testen med 4K 60FPS videoafspilning i VLC. For eksempel var belastningen p\u00e5 GPU-grafikpipeline i GNOME i Fedora 58.21%, i KDE baseret p\u00e5 Wayland var det 56.33% og 57.33%, mens det i KDE X11 var 57.98%. Video RAM-forbruget i GNOME i Fedora oversteg mere end det dobbelte (50.89) af niveauerne i KDE baseret p\u00e5 Wayland (23.29 og 24.60) og oversteg KDE X11 med 15% (44.36).\n<li class=\"l\"> Energiforbrug ved videoafspilning: KDE X11 \u2013 11.4-14.9 watt, KDE Wayland (CA) \u2013 13.8-14.1 watt, GNOME Wayland \u2013 12.5-15.6 watt, KDE Wayland (PE) \u2013 13.8-20.4 watt.            <\/ul>\n<p>                      <center>  \t\t\t  \t\t\t\t  \t\t\t\t  \t\t\t\t\t\tMetrik\t\t\t\t\t\tFedora 42 Wayland\t\t\t\t\t\tKDE neon Wayland (PE)\t\t\t\t\t\tKDE neon Wayland (CA)\t\t\t\t\t\tKDE neon X11 (Comp ON)\t\t\t\t\t\t\t\t\t\tIdle CPU % (id)\t\t\t\t\t\t97,8\t\t\t\t\t\t98,03\t\t\t\t\t\t97,90\t\t\t\t\t\t98,17\t\t\t\t\t\t\t\t\t\tKontextskift (cs)\t\t\t\t\t\t536\t\t\t\t\t\t1195\t\t\t\t\t\t1208\t\t\t\t\t\t803\t\t\t\t\t\t\t\t\t\tInterruptioner (in)\t\t\t\t\t\t929\t\t\t\t\t\t1188\t\t\t\t\t\t1173\t\t\t\t\t\t937\t\t\t\t\t\t\t\t\t\tEnergi forbrug (watt)\t\t\t\t\t\t5,83-7,62\t\t\t\t\t\t6,09\t\t\t\t\t\t6,05-6,08\t\t\t\t\t\t5,67-5,87\t\t\t\t\t\t\t\t\t\tCPU clock (ms)\t\t\t\t\t\t~492.000\t\t\t\t\t\t~543.000\t\t\t\t\t\t~540.000\t\t\t\t\t\t~527.000\t\t\t\t\t\t\t\t\t\tKontextskift\t\t\t\t\t\t9.468 | 19.244\/s\t\t\t\t\t\t14.415 | 26.547\/s\t\t\t\t\t\t16.120 | 29.864\/s\t\t\t\t\t\t6.021 | 11.436\/s\t\t\t\t\t\t\t\t\t\tIdle CPU % ved videowiedergivelse\t\t\t\t\t\t70,4\t\t\t\t\t\t68,49\t\t\t\t\t\t74,29\t\t\t\t\t\t90,20\t\t\t\t\t\t\t\t\t\tGPU-grafikpipelinebelastning ved videowiedergivelse\t\t\t\t\t\t58,21%\t\t\t\t\t\t56,33%\t\t\t\t\t\t57,33%\t\t\t\t\t\t57,98%\t\t\t\t\t\t\t\t\t\tVRAM\t\t\t\t\t\t50,89\t\t\t\t\t\t23,29\t\t\t\t\t\t24,60\t\t\t\t\t\t44,36\t\t\t\t\t\tEnergi forbrug i watt ved videowiedergivelse\t\t\t\t\t\t12,5-15,6\t\t\t\t\t\t13,8-20,4\t\t\t\t\t\t13,8-14,1\t\t\t\t\t\t11,4-14,9\t\t\t\t\t\t\t\t\t\tFPS i WebGL Aquarium-testen\t\t\t\t\t\t26-29\t\t\t\t\t\t16-38\t\t\t\t\t\t18-37\t\t\t\t\t\t16-42\t\t\t\t\t\t\t\t\t\tEnergi forbrug i WebGL Aquarium-testen\t\t\t\t\t\t17-19\t\t\t\t\t\t17-29\t\t\t\t\t\t16-27\t\t\t\t\t\t21-29  \t\t\t\t\t          \t\t\t\t  \t\t\t  <\/center>      <\/p>\n<p>Testresultaterne viser, at det stadig er for tidligt at afskrive X11, mens Wayland-baserede l\u00f8sninger kr\u00e6ver yderligere optimering. X11 vurderes stadig som den mest optimale l\u00f8sning med hensyn til ydeevne. Implementeringen af Wayland i KDE menes at v\u00e6re bedre end i GNOME \u2013 GNOME Wayland-sessionen, implementeret i Fedora, er if\u00f8lge testene mindre effektiv end KDE Wayland-sessionen, som igen halter bagefter KDE X11.<br \/>\n<br \/>Kilde: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=63563\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0418\u0433\u043e\u0440\u044c \u041b\u044e\u0431\u0443\u043d\u0447\u0438\u0447 (Igor Ljubuncic), \u0434\u043e 2024 \u0433\u043e\u0434\u0430 \u043e\u0442\u0432\u0435\u0447\u0430\u0432\u0448\u0438\u0439 \u0432 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0438 Canonical \u0437\u0430 \u043f\u0440\u043e\u0434\u0443\u043a\u0442\u044b, \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u044b\u0435 \u0441 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\u043f\u0440\u0438\u0448\u0451\u043b \u043a \u0432\u044b\u0432\u043e\u0434\u0443, \u0447\u0442\u043e \u0441\u0435\u0430\u043d\u0441 \u043d\u0430 \u0431\u0430\u0437\u0435 Wayland \u0443\u0441\u0442\u0443\u043f\u0430\u0435\u0442 \u0432 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u0438 \u0438 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-138902","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0418\u0433\u043e\u0440\u044c \u041b\u044e\u0431\u0443\u043d\u0447\u0438\u0447 (Igor Ljubuncic), \u0434\u043e 2024 \u0433\u043e\u0434\u0430 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