<div dir="auto"><div>Thank you<br><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">pt., 7 paź 2022, 03:52 użytkownik Tatsuo Ishii <<a href="mailto:ishii@sraoss.co.jp">ishii@sraoss.co.jp</a>> napisał:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi,<br>
<br>
> Hi,<br>
> when I was looking for something about differences between shmem and<br>
> memcached I found:<br>
> <br>
> "Shared memory – Fast and easy to use but cache size is limited"<br>
<br>
Maybe you found the phrase in my presentation?<br>
<br>
<a href="https://www.sraoss.co.jp/wp-content/uploads/files/event_seminar/material/2012/20121024_pgpool-II_pgconfEU2012_sraoss.pdf" rel="noreferrer noreferrer" target="_blank">https://www.sraoss.co.jp/wp-content/uploads/files/event_seminar/material/2012/20121024_pgpool-II_pgconfEU2012_sraoss.pdf</a><br>
<br>
> Then I have question: what is the size limit of shmem ?<br>
<br>
The upper limit of shmem size depends on the system defined shared<br>
memory size. Unfortunately there is a bug with the query cache system<br>
which limits the max size of cache to 2GB. This will be fixed in the<br>
next minor releases (planned to be released in this November). After<br>
the fix applied, the upper limit will be same the system shared memory<br>
size.<br>
<br>
Best reagards,<br>
--<br>
Tatsuo Ishii<br>
SRA OSS LLC<br>
English: <a href="http://www.sraoss.co.jp/index_en/" rel="noreferrer noreferrer" target="_blank">http://www.sraoss.co.jp/index_en/</a><br>
Japanese:<a href="http://www.sraoss.co.jp" rel="noreferrer noreferrer" target="_blank">http://www.sraoss.co.jp</a><br>
</blockquote></div></div></div>