2023-01-07 12:46:47 +01:00
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<title>XSCHEM GRAPHICS PERFORMANCE CONSIDERATIONS</title>
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<a href="xschem_man.html" class="home">UP</a>
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<h1> XSCHEM GRAPHICS PERFORMANCE CONSIDERATIONS </h1><br>
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<p>
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For 2D graphic workloads software rendering on framebuffer device is the fastest option on almost all
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laptops i have tested xschem on. The only exception is the little Samsung N220 due to the slow
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and tiny Atom N450 CPU.<br>
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Framebuffer graphics is also the most precise and reliable since the X11 specification
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has exact rules for pixelization/rasterizationof primitives. <br>
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All drawings are thus exactly identical down to the pixels on any machine using fbdev.i<br>
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Following table summarizes the test times for a xschem BIST routine, doing lot of
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graphic (among other) operations.
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</p>
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<pre class="code">
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HOST CPU GPU X11 Driver Test time [s]
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=======================================================================================================
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Asus F556U Intel core i7-7500U Intel HD 620 fbdev 19.8 -best-
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Asus F556U Intel core i7-7500U Intel HD 620 modesetting 28.7
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Asus F556U Intel core i7-7500U Intel HD 620 intel 20.6
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Samsung N220 Intel Atom N450 Integrated N450 fbdev 96.5
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Samsung N220 Intel Atom N450 Integrated N450 modesetting N/A
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Samsung N220 Intel Atom N450 Integrated N450 intel 95.0 -best-
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Samsung R540 Intel Core i3 M 380 AMD/ATI Radeon HD 54xx fbdev 31.9 -best-
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Samsung R540 Intel Core i3 M 380 AMD/ATI Radeon HD 54xx modesetting 64.3
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Samsung R540 Intel Core i3 M 380 AMD/ATI Radeon HD 54xx radeon 32.3
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HP Pavilion DV6000 Intel Core Duo T5450 NVIDIA GeForce 8400M GS fbdev 41.5 -best-
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HP Pavilion DV6000 Intel Core Duo T5450 NVIDIA GeForce 8400M GS modesetting 216.1
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HP Pavilion DV6000 Intel Core Duo T5450 NVIDIA GeForce 8400M GS nouveau 41.6
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</pre><br>
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<p>
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Following video shows the testing in action (OS: Devuan/testing, Arch: amd64):<br><br>
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<video width="1024" height="768" controls>
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2023-01-07 12:49:59 +01:00
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<source src="https://xschem.sourceforge.io/stefan/xschem_man/video_tutorials/performance.mp4" type="video/mp4">
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2023-01-07 12:46:47 +01:00
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