OpenGL Accelerated HTML Overlay: Performance - x86

To let you know the characteristics of the computer where the test was run, here is a table with the hardware of the computer:

Part	Description
CPU	11th Gen Intel(R) Core(TM) i7-11390H @ 3.40GHz
RAM	Micron DDR4 16 GB @ 3200MHz
Storage	INTEL SSDPEKNU010TZ (1 TB)
GPU	Intel Iris Xe Graphics G7 96EUs

The following results show multiple tests for different resolutions at 30 fps, in order to dig into the multiple capabilities of the end user. You can link the limit fps of the limit tables to the average table just to realize the limits of each resolution, but remember that the limit is just virtual since we are using the element imagefreeze to set the hardware to the limit.

CPU usage

Take the following pipelines as reference:

No GL Memory

For average behavior:

gst-launch-1.0 videotestsrc is-live=1 ! "video/x-raw,framerate=30/1,height=${H},width=${W}" ! queue ! videoconvert ! "video/x-raw" ! queue ! htmloverlay url="https://www.clocktab.com/" enable-js=true web-refresh-rate=5 overlay-x=100 ! queue ! "video/x-raw" ! queue ! perf print-cpu-load=true ! fakesink

For limit behavior:

gst-launch-1.0 videotestsrc num-buffers=1 ! "video/x-raw,format=RGBA,height=${HEIGHT},width=${WIDTH}" ! imagefreeze ! queue ! htmloverlay url="https://www.clocktab.com/" enable-js=true web-refresh-rate=5 overlay-x=100 ! queue ! perf print-cpu-load=true ! fakesink

Results for average behavior

Resolution	720p	1080p	4K
Max Framerate (fps)	30	30	30
CPU(%)	5	6	15
RAM(MiB)	168	184	344

Results for limit behavior

Resolution	720p	1080p	4K
Max Framerate (fps)	586.243	103.423	50.57
CPU(%)	16	15	17
RAM(MiB)	336	416	544

GL Memory:

For average behavior:

gst-launch-1.0 videotestsrc is-live=1 ! "video/x-raw,framerate=30/1,height=${H},width=${W}" ! queue ! videoconvert ! glupload ! "video/x-raw(memory:GLMemory)" ! queue ! glhtmloverlay url="https://www.clocktab.com/" enable-js=true web-refresh-rate=5 overlay-x=100 ! queue ! "video/x-raw(memory:GLMemory)"  ! gldownload ! queue ! perf print-cpu-load=true ! fakesink

For limit behavior:

gst-launch-1.0 videotestsrc num-buffers=1 ! "video/x-raw,format=RGBA,height=${HEIGHT},width=${WIDTH}" ! imagefreeze ! queue ! glupload ! "video/x-raw(memory:GLMemory)" ! queue ! glhtmloverlay url="https://www.clocktab.com/" enable-js=true web-refresh-rate=5 overlay-x=100 ! queue ! "video/x-raw(memory:GLMemory)"  ! gldownload ! queue ! perf print-cpu-load=true ! fakesink

Results for average behavior