<div dir="ltr">>
<span style="color:rgb(0,0,0)">I almost sure already this is Intel HD 620 graphics not enough for Koreans :)</span><br style="color:rgb(0,0,0)"><div><span style="color:rgb(0,0,0)"><br></span></div><div><span style="color:rgb(0,0,0)">I think that's also good hardware still.</span></div><div><span style="color:rgb(0,0,0)"><br></span></div><div><span style="color:rgb(0,0,0)">And next test is done with Intel N2840 Celeron notebook with 4 GB RAM, SATA3 SSD.</span></div><div><span style="color:rgb(0,0,0)">It's not exactly same with Intel HD620 Graphic core, but it was produced with Ivy Bridge based Atom SoC processor, and it has HD Graphic core too.</span></div><div>As you know, HD Graphic core shared with main memory area, it is related with BIOS, driver and Memory health.</div><div><br></div><div>In my test case, it works well.</div><div>(Almost same or faster than in the clip.)</div><div><br></div><div>I'm sorry for your experience.</div><div><br></div><div>I think if there are problems, storage I/O (SSD or HDD) or memory bandwidth.</div><div>If you feel Asian characters rendering is slower than other fonts, it is related to memory bandwidth.</div><div>I know more load is needed to render asian fonts. But that's not a problem after Core i series and amd64 CPU systems with SSD.</div><div>KDE framework, Qt framework, font cache systems are not a problem.</div><div>It's fair from this problem.</div><div><br></div><div>Could you check your system health check with memtest86 or gnome-disk-utility?</div><div><br></div></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Thu, May 15, 2025 at 6:22 PM Igor Mironchik <<a href="mailto:igor.mironchik@gmail.com">igor.mironchik@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><u></u>
<div>
<p>Hi.</p>
<p>I almost sure already this is Intel HD 620 graphics not enough
for Koreans :)<br>
<br>
But I wait for test on your side.<br>
<br>
Thank you.<br>
</p>
<div>On 15.05.2025 12:02, Sung-Jae, Cho
wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">Hi, again.
<div><br>
</div>
<div>First test is done with Virtual Box.</div>
<div>I captured a video and please check the clip below.</div>
<div><a href="https://drive.google.com/file/d/1WXl4CxMv1iNkO72F_5uXnLyOGVG33ytA/view?usp=sharing" target="_blank">https://drive.google.com/file/d/1WXl4CxMv1iNkO72F_5uXnLyOGVG33ytA/view?usp=sharing</a></div>
<div>I think it is not much delayed.</div>
<div>After installing OpenSuse tumbleweed, I added ibus-hangul
package with ibus-daemon, google-noto-sans-kr fonts.</div>
<div>Maybe it is related to the graphic card driver, on the next
installing notebook with HD620 graphic core.</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Thu, May 15, 2025 at
5:15 PM Sung-Jae, Cho <<a href="mailto:cho.sungjae@gmail.com" target="_blank">cho.sungjae@gmail.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div dir="ltr">Thanks for the information. :)
<div><br>
Additionally, I'll test with an Intel HD Graphics 620
notebook, too.</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Thu, May 15, 2025 at
5:09 PM Igor Mironchik <<a href="mailto:igor.mironchik@gmail.com" target="_blank">igor.mironchik@gmail.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div>
<p>
</p>
<div>On 15.05.2025 10:44, Sung-Jae, Cho wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">I'll try again with openSUSE
Tumbleweed. :)
<div>Please, wait a day. I'll try
with virtual machines and real machines, both.</div>
<div>And if you can bring some hardware information
with a video card driver, xorg-driver, etc,</div>
<div>it'll be helpful for finding the cause.</div>
</div>
</blockquote>
<p>
</p>
<p>Operating System: openSUSE Tumbleweed 20250512
KDE Plasma Version: 6.3.5
KDE Frameworks Version: 6.14.0
Qt Version: 6.9.0
Kernel Version: 6.14.5-1-default (64-bit)
Graphics Platform: X11
Processors: 4 × Intel® Core™ i5-7200U CPU @ 2.50GHz
Memory: 7,6 GiB of RAM
Graphics Processor: llvmpipe
Manufacturer: HP
Product Name: HP ProBook 640 G3
</p>
<p style="margin:0px;text-indent:0px">Extended renderer
info (GLX_MESA_query_renderer):</p>
<p style="margin:0px;text-indent:0px"> Vendor: Intel
(0x8086)</p>
<p style="margin:0px;text-indent:0px"> Device: Mesa
Intel(R) HD Graphics 620 (KBL GT2) (0x5916)</p>
<p style="margin:0px;text-indent:0px"> Version: 25.0.5</p>
<p style="margin:0px;text-indent:0px"> Accelerated: yes</p>
<p style="margin:0px;text-indent:0px"> Video memory:
3909MB</p>
<p style="margin:0px;text-indent:0px"> Unified memory:
yes</p>
<p style="margin:0px;text-indent:0px"> Preferred
profile: core (0x1)</p>
<p style="margin:0px;text-indent:0px"> Max core profile
version: 4.6</p>
<p style="margin:0px;text-indent:0px"> Max compat
profile version: 4.6</p>
<p style="margin:0px;text-indent:0px"> Max GLES1 profile
version: 1.1</p>
<p style="margin:0px;text-indent:0px"> Max GLES[23]
profile version: 3.2</p>
<p style="margin:0px;text-indent:0px">OpenGL vendor
string: Intel</p>
<p style="margin:0px;text-indent:0px">OpenGL renderer
string: Mesa Intel(R) HD Graphics 620 (KBL GT2)</p>
<p style="margin:0px;text-indent:0px">OpenGL core
profile version string: 4.6 (Core Profile) Mesa 25.0.5</p>
<p style="margin:0px;text-indent:0px">OpenGL core
profile shading language version string: 4.60</p>
<p style="margin:0px;text-indent:0px">OpenGL core
profile context flags: (none)</p>
<p style="margin:0px;text-indent:0px">OpenGL core
profile profile mask: core profile</p>
<p style="margin:0px;text-indent:0px">
</p>
<p style="margin:0px;text-indent:0px">
</p>
<p style="margin:0px;text-indent:0px">EGL driver name:
iris</p>
<p style="margin:0px;text-indent:0px">
EGL_MESA_image_dma_buf_export, EGL_MESA_query_driver,
</p>
<p style="margin:0px;text-indent:0px">EGL driver name:
iris</p>
<p style="margin:0px;text-indent:0px">
EGL_MESA_gl_interop, EGL_MESA_image_dma_buf_export,
EGL_MESA_query_driver, </p>
<p style="margin:0px;text-indent:0px">EGL driver name:
iris</p>
<p style="margin:0px;text-indent:0px">
EGL_MESA_image_dma_buf_export, EGL_MESA_query_driver,
</p>
<p style="margin:0px;text-indent:0px">EGL driver name:
iris</p>
<p style="margin:0px;text-indent:0px">
EGL_MESA_image_dma_buf_export, EGL_MESA_query_driver,
</p>
<p style="margin:0px;text-indent:0px">EGL driver name:
swrast</p>
<p style="margin:0px;text-indent:0px">
EGL_MESA_image_dma_buf_export, EGL_MESA_query_driver,
</p>
<p style="margin:0px;text-indent:0px">
</p>
<blockquote type="cite"><br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Thu, May 15,
2025 at 4:38 PM Igor Mironchik <<a href="mailto:igor.mironchik@gmail.com" target="_blank">igor.mironchik@gmail.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><br>
On 15.05.2025 08:49, Konstantin Kharlamov wrote:<br>
> On Thu, 2025-05-15 at 08:37 +0300, Igor
Mironchik wrote:<br>
>> On 15.05.2025 08:29, Konstantin Kharlamov
wrote:<br>
>>> On Thu, 2025-05-15 at 06:29 +0300,
Igor Mironchik wrote:<br>
>>>> Hi.<br>
>>>><br>
>>>> Are any Korean here? I'm curious
if they have very bad<br>
>>>> performance of<br>
>>>> rendering Korean text in any Qt
application? Or is this just<br>
>>>> because<br>
>>>> of<br>
>>>> missing some fonts on my system?
I see a huge performance<br>
>>>> slowdown on<br>
>>>> Korean text rendering.<br>
>>> How did you measure? I'm not a
Korean, but I tried pasting a Korean<br>
>>> wiki article to Kate with "Droid Sans
[1ASC]" font and scrolling<br>
>>> and I<br>
>>> don't see any change in performance.
Perhaps some more scientific<br>
>>> method required.<br>
>><br>
>> I paste in Kate a Korean text (~1kB), it
took so much time to paste<br>
>> and<br>
>> render it (~5 seconds), and Kate starts
to think a lot even on<br>
>> navigating in menu.<br>
>><br>
>> The same with English or Russian text - I
don't see any delays, Kate<br>
>> is<br>
>> responsive.<br>
> I see. Seems something specific to your
system — I just created a 158K<br>
> text file by copy-pasting a Korean Wiki
article a dozen of times, and<br>
> when I open it in Kate, everything is smooth
and nice.<br>
><br>
> Is it maybe the font? What font do you use?
Can you try going to Kate<br>
> settings and changing the font to "Droid Sans
[1ASC]" (on Archlnux it's<br>
> a `ttf-droid` package) and seeing if that
makes any difference?<br>
<br>
I guess too this is system specific. I'm on
openSUSE Tumbleweed. <br>
Changing editor's font to Droid Sans doesn't help.<br>
<br>
Ok. I see that this issue is system specific, so
my question is <br>
answered. Maybe somebody can check this issue on
Tumbleweed only?<br>
<br>
Thank you.<br>
</blockquote>
</div>
</blockquote>
</div>
</blockquote>
</div>
</blockquote>
</div>
</blockquote>
</div>
</blockquote></div>