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<DIV><FONT size=2 face=宋体>Maybe you should reduce the number of threads. I tried
on my PC and got the fps of 235 with 16 threads (intel 2.4GHz 4
cores).</FONT></DIV>
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<DIV><FONT face=宋体></FONT><FONT face=宋体></FONT><FONT face=宋体></FONT><BR></DIV>
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<DIV style="font-color: black"><B>From:</B> <A
title="mailto:kenter83@gmail.com CTRL + 单击以下链接"
href="mailto:kenter83@gmail.com">kenter</A> </DIV>
<DIV><B>Sent:</B> Tuesday, April 06, 2010 7:52 PM</DIV>
<DIV><B>To:</B> <A title="mailto:x264-devel@videolan.org CTRL + 单击以下链接"
href="mailto:x264-devel@videolan.org">Mailing list for x264 developers</A>
</DIV>
<DIV><B>Subject:</B> [x264-devel] Max thread number of x264</DIV></DIV></DIV>
<DIV><BR></DIV>
<DIV>Hi, Experts:</DIV>
<DIV> I have a server with 24 AMD CPUs equipped,
however, when I set x264 with --threads 36 <EM>(36 means 24*1.5)</EM>, I found
the CPU usage only 800+, which means only 8 CPU cores are filled. </DIV>
<DIV> I also use top -H -p PID to detect the real
threads count of x264 proc, It shows 15 threads runs simutaneous at peak, I need
help that How can I fully ultilize the CPU power?</DIV>
<DIV> </DIV>
<DIV> My command line is:</DIV>
<DIV> SRC_FILE.yuv 720x576 -I 250 -i 25 -b 4 --b-adapt 1
--b-bias 0 --ref 6 --deblock 0:0 --bitrate 500 --qpmin 2 --qpmax 51 --qpstep 3
--ratetol 8.0 --aq-mode 0 --sar 16:15 --ipratio 1.25 --pbratio 1.25 --pass 0
--partitions all --cqm flat --direct spatial --mvrange-thread 24 --me hex
--merange 16 --subme 6 --psy-rd 1.0:0.0 --mixed-refs --8x8dct --no-chroma-me
--no-fast-pskip --trellis 0 --nr 0 --threads 36 --vbv-bufsize 2000
--vbv-init 0.75 --aq-strength 1 --chroma-qp-offset 10
--weightb --fps 25 -o output_file.264</DIV>
<DIV> </DIV>
<DIV> Thanks!</DIV>
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