{"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\/it\/blog\/novosti-interneta\/sravnenie-proizvoditelnosti-seansov-kde-plasma-na-baze-x11-i-wayland","title":{"rendered":"Confronto delle prestazioni delle sessioni KDE Plasma basate su X11 e Wayland","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Igor Ljubuncic, che fino al 2024 ha gestito i prodotti relativi al calcolo ad alte prestazioni presso Canonical, ha condotto un test sulle prestazioni e sul consumo energetico delle sessioni KDE Plasma 6.4 basate su X11 e Wayland. Alla fine di giugno, Igor ha pubblicato una recensione delle funzionalit\u00e0 di KDE Plasma 6.4, in cui ha concluso che la sessione basata su Wayland \u00e8 meno performante e carica di pi\u00f9 la CPU e la GPU rispetto alla sessione basata su X11. In una serie di nuovi articoli, Igor ha cercato di testare pi\u00f9 a fondo le prestazioni di entrambe le sessioni.    <\/p>\n<p>Inizialmente si \u00e8 notato che durante il test su un laptop Lenovo IdeaPad 3 con GPU integrata AMD, nella sessione Wayland, indipendentemente dall'attivit\u00e0 della CPU, quest'ultima era costantemente caricata intorno all'8%, mentre ogni 2-3 secondi si osservava un picco che caricava completamente la GPU. Nella sessione X11, il carico su CPU e GPU durante il periodo di inattivit\u00e0 era pari a zero. Una verifica successiva con l'utility radeontop ha mostrato un maggiore consumo di risorse nella sessione Wayland, specialmente attivando il profilo \u00abColor Accuracy\u00bb nelle impostazioni dello schermo. Nella tabella sottostante \u00e8 indicato il carico medio sulla GPU in percentuale, durante un insieme simile di applicazioni in esecuzione e la raccolta di dati ogni secondo per un periodo di 60 secondi.    <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\tefficienza energetica  \t\t\t\t\t\tWayland +  \t\t\t\t\t\tprecisione dei colori  \t\t\t\t\t\tX11  \t\t\t\t\t  \t\t\t\t\t  \t\t\t\t\t\tInterfaccia grafica  \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\tRaggruppatore di vertici + Tesselatore  \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\tIndirizzatore di texture  \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\tEsportazione degli shader  \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\tCache delle istruzioni del sequencer  \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\tInterpolatore di shader  \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\tConvertitore di scansione  \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\tAssemblaggio di primitivi  \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\tBlocco di profondit\u00e0  \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\tBlocco di colore  \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\tFrequenza della memoria  \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\tFrequenza shader  \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>Il test del consumo energetico con l'utility powertop ha dimostrato anche un vantaggio della sessione X11: il consumo energetico della sessione Wayland durante diverse rilevazioni era di 6.09 watt, Wayland con il profilo \u00abColor Accuracy\u00bb 6.05-6.08 watt, mentre X11 oscillava tra 5.67-5.87 watt. Complessivamente si \u00e8 concluso che la sessione X11 consuma dal 3 al 7% in meno di carica della batteria rispetto a Wayland.    <\/p>\n<p>Il controllo del carico sulla CPU con l'utility vmstat ha rivelato che durante il periodo di inattivit\u00e0, la sessione X11 consumava l'1.83% della CPU, mentre Wayland l'1.97% (2.1% con il profilo Color Accuracy). L'utility \u00e8 stata eseguita su sessioni appena create nel terminale Konsole, calcolando la media durante un campionamento ogni secondo per 60 secondi. Il carico sulla CPU utilizzando Wayland si \u00e8 rivelato superiore del 7.6% (e del 14% in modalit\u00e0 Color Accuracy) rispetto alla sessione X11. Nella sessione Wayland sono state registrate il 25% in pi\u00f9 di interruzioni e il 48% in pi\u00f9 di passaggi di contesto.    <center>    \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\tefficienza energetica  \t\t\t\t\t\tWayland +  \t\t\t\t\t\taccuratezza dei colori  \t\t\t\t\t\tX11  \t\t\t\t\t  \t\t\t\t\t  \t\t\t\t\t\tMedia num. di task nella 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\tTask totali nella 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\tInterruzioni (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\tPassaggi di contesto (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\tCPU inattivo % (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>Successivamente, \u00e8 stata condotta un'analisi delle chiamate durante il periodo di inattivit\u00e0 con l'utility perf. KWin_wayland consumava circa l'1% (1.5%) del tempo della CPU, mentre KWin_X11 solo lo 0.44%. Le richieste a amdgpu ammontavano allo 0.77% (1%) per Wayland e allo 0.65% per X11. In stato di inattivit\u00e0, nella sessione X11 sono state eseguite circa la met\u00e0 delle istruzioni per la CPU rispetto alla sessione basata su Wayland.    <center>  \t\t\t  \t\t\t\t  \t\t\t\t\t  \t\t\t\t\t\tMetrica  \t\t\t\t\t\tWayland +  \t\t\t\t\t\tefficienza energetica  \t\t\t\t\t\tWayland +  \t\t\t\t\t\taccuratezza dei colori  \t\t\t\t\t\tX11  \t\t\t\t\t  \t\t\t\t\t  \t\t\t\t\t\tFrequenza CPU (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\tCambio di contesto  \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\tMigrazioni CPU  \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\tErrori di pagina  \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\tCicli  \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\tCicli bloccati 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\tCicli bloccati 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\tIstruzioni  \t\t\t\t\t\t780M | 0.2\/ciclo  \t\t\t\t\t\t1.82 bloccati\/ciclo  \t\t\t\t\t\t901M | 0.2\/ciclo  \t\t\t\t\t\t1.61 bloccati\/ciclo  \t\t\t\t\t\t483M | 0.25\/ciclo  \t\t\t\t\t\t1.28 bloccati\/ciclo  \t\t\t\t\t  \t\t\t\t\t  \t\t\t\t\t\tRami  \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\tErrori di ramo  \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>Nell'articolo successivo, i test sono stati ripetuti in configurazione con Kubuntu 24.04 utilizzando KDE Plasma 5.27 su un laptop Lenovo Y50-70 con CPU Intel e scheda video NVIDIA. I risultati si sono rivelati abbastanza simili: la sessione Wayland \u00e8 risultata meno efficiente rispetto a X11. Il consumo energetico era di 22.42 watt in Wayland e 21.86 in X11, il carico sulla CPU in modalit\u00e0 inattiva era di 0.067 rispetto a 0.050, il numero di passaggi di contesto era di 43.835\/s contro 34.133\/s, e il carico durante la visione di video 4K su VLC era del 12.54% rispetto al 4.26%, mentre le prestazioni di WebGL erano 16 FPS contro 29 FPS.    <\/p>\n<p>I test analoghi sono stati riprodotti su un laptop Lenovo IdeaPad 3 con CPU\/GPU AMD utilizzando una recente build del progetto KDE Neon. Nel test di riproduzione di video 4K su VLC, il carico sulla CPU utilizzando X11 con compositing disattivato era del 3.72%, X11 con compositing attivato del 9.8%, Wayland con Color Accuracy (CA) del 25.71% e Wayland in modalit\u00e0 di consumo energetico efficace (PE) del 31.51%. Dunque, il carico sulla CPU utilizzando Wayland si \u00e8 dimostrato da 8 a 10 volte superiore rispetto a X11.     <\/p>\n<p>Con l'utilizzo di Wayland \u00e8 stata anche registrata una generazione di interruzioni superiore del 5-16%. La differenza nel carico sulla GPU \u00e8 stata nell'ordine del 2%: Wayland (PE) al 56.33%, Wayland (CA) al 57.33%, X11 (Comp ON) al 57.98%, X11 (Comp OFF) al 56.81%. Per quanto riguarda il consumo energetico, Wayland ha consumato pi\u00f9 energia dal 8 al 49%: Wayland (PE) 13.8-20.4 watt, Wayland (CA) 13.8-14.1 watt, X11 (Comp ON) 10.7-12.1 watt, X11 (Comp OFF) 11.4-14.9 watt. Nel test WebGL Aquarium, i risultati per Wayland e X11 sono stati pressoch\u00e9 equivalenti: Wayland (PE) 16-38 FPS, Wayland (CA) 18-37 FPS, X11 (Comp ON) 16-42 FPS, X11 (Comp OFF) 21-42 FPS, ma il consumo energetico con Wayland \u00e8 stato superiore di circa l'8%.    <\/p>\n<p>Alla fine \u00e8 stato condotto un ulteriore esperimento, questa volta coprendo GNOME di Fedora 42 e KDE Plasma 6.4 o KDE neon. Il test \u00e8 stato eseguito su un laptop Lenovo IdeaPad 3 con CPU\/GPU AMD.  <\/p>\n<ul>\n<li class=\"l\"> Carico sulla CPU durante il periodo di inattivit\u00e0: KDE X11 1.83%, KDE Wayland (PE) 1.97%, KDE Wayland (CA) 2.1%, GNOME Wayland 2.2%.\n<li class=\"l\"> Consumo energetico in modalit\u00e0 inattiva con una sola finestra del terminale: KDE X11 5.67-5.87 watt, KDE Wayland (CA) 6.05-6.08 watt, KDE Wayland (PE) 6.09 watt, GNOME Wayland 5.83-7.62 watt.\n<li class=\"l\"> Il carico della GPU in modalit\u00e0 inattiva \u00e8 risultato essere il pi\u00f9 basso nella configurazione con GNOME Wayland, ma la differenza \u00e8 spiegata dalla differenza nelle applicazioni in esecuzione, System Monitor e GNOME System Monitor.\n<li class=\"l\"> Nelle statistiche raccolte dall'utility perf, il minor tempo di CPU \u00e8 stato speso nella configurazione basata su GNOME.\n<li class=\"l\"> Nel test di riproduzione video 4K 60FPS in VLC, la sessione GNOME in Fedora ha consumato leggermente meno CPU (29.6%) rispetto a KDE basato su Wayland in modalit\u00e0 Color Accuracy (31.51%), ma pi\u00f9 rispetto alla sessione KDE basata su X11 (9.8%) e Wayland in modalit\u00e0 di consumo energetico efficiente (25.71%).\n<li class=\"l\"> Nella valutazione del consumo di risorse GPU, la sessione GNOME in Fedora, durante il test di riproduzione video 4K 60FPS in VLC, ha consumato pi\u00f9 risorse GPU. Ad esempio, il carico sul pipeline GPU in GNOME su Fedora era del 58.21%, in KDE basato su Wayland del 56.33% e 57.33%, e in KDE X11 del 57.98%. Il consumo di memoria video in GNOME su Fedora ha superato di oltre il doppio (50.89) i valori di KDE basato su Wayland (23.29 e 24.60) e ha superato del 15% KDE X11 (44.36).\n<li class=\"l\"> Consumo energetico durante la riproduzione di video: KDE X11 11.4-14.9 watt, KDE Wayland (CA) 13.8-14.1 watt, GNOME Wayland 12.5-15.6 watt, KDE Wayland (PE) 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\tMetrica  \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  \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  \t\t\t\t\t\tSwitches context (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\t\t\tNumber of interrupts (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\t\t  \t\t\t\t\t\tPower consumption (watts)  \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  \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\t  \t\t\t\t\t\tContext switches  \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\t\tIdle CPU % while watching video  \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  \t\t\t\t\t\tGPU pipeline load while watching video  \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  \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      Energy consumption in watts while watching video  \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\t\tFPS in WebGL Aquarium test  \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  \t\t\t\t\t\tEnergy consumption in WebGL Aquarium test  \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>Dai risultati dei test si evince che \u00e8 ancora prematuro scartare X11, mentre le soluzioni basate su Wayland necessitano di ulteriori ottimizzazioni. X11 \u00e8 ancora considerato la soluzione pi\u00f9 ottimale in termini di prestazioni. L'implementazione di Wayland in KDE \u00e8 presumibilmente migliore rispetto a quella in GNOME \u2014 la sessione GNOME Wayland, realizzata in Fedora, risulta meno performante rispetto alla sessione KDE Wayland, che a sua volta \u00e8 inferiore a KDE X11.<br \/>\n<br \/>Fonte: <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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Alla fine di giugno, Igor ha pubblicato una recensione delle capacit\u00e0 di KDE Plasma 6.4, giungendo alla conclusione che la sessione basata su Wayland \u00e8 inferiore in termini di prestazioni e","canonical_url":"https:\/\/prohoster.info\/it\/blog\/novosti-interneta\/sravnenie-proizvoditelnosti-seansov-kde-plasma-na-baze-x11-i-wayland","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"it_IT","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u0421\u0440\u0430\u0432\u043d\u0435\u043d\u0438\u0435 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