<div dir="ltr">Hello,<div><br></div><div>Please find the details below.</div><div><br></div><div>Free command is used to check RAM available/used. space used is 50GB on RHEL 7.9 in bind version 9.18.2 whereas in bind version 9.16.10 RAM space used is 44 GB with the same amount of data and configuration.</div><div><br></div><div><p class="MsoNormal" style="margin:0in;font-size:11pt;font-family:Calibri,sans-serif">free -g<br> total used free shared buff/cache available<br>Mem: 50 50 0 0 0 0<br>Swap: 9 0 9<br></p><p class="MsoNormal" style="margin:0in;font-size:11pt;font-family:Calibri,sans-serif"><br></p><p class="MsoNormal" style="margin:0in;font-size:11pt;font-family:Calibri,sans-serif">starting BIND 9.18.2 (Stable Release) <id:3babb15><br>named[31521]: running on Linux x86_64 3.10.0-1160.59.1.el7.x86_64 #1 SMP<br>named[31521]: built with '--prefix=/opt/bind' '--sysconfdir=/etc/opt/bind' '--with-openssl=no' '--disable-doh' 'PKG_CONFIG_PATH=/usr/lib/pkgconfig'<br>running as: named -n 4 -c /etc/opt/bind/named.conf.0<br>compiled by GCC 4.8.5 20150623 (Red Hat 4.8.5-44)<br>compiled with OpenSSL version: OpenSSL 1.0.2k-fips 26 Jan 2017<br>linked to OpenSSL version: OpenSSL 1.0.2k-fips 26 Jan 2017<br>compiled with libxml2 version: 2.9.1<br>linked to libxml2 version: 20901<br>compiled with zlib version: 1.2.7<br>linked to zlib version: 1.2.7<br><br>Regards,<br>Raman</p></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, May 18, 2022 at 12:06 PM Ondřej Surý <<a href="mailto:ondrej@isc.org">ondrej@isc.org</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">You did not provided any details, so we can’t really help you.<br>
<br>
What is “RAM consumption” anyway? VSZ, RSS, numbers pulled from stats channel from named?<br>
<br>
What’s the hardware, what is the configuration, how was BIND 9 compiled (or packaged)?<br>
<br>
The more details, the better<br>
<br>
Ondrej<br>
--<br>
Ondřej Surý (He/Him)<br>
<a href="mailto:ondrej@isc.org" target="_blank">ondrej@isc.org</a><br>
<br>
My working hours and your working hours may be different. Please do not feel obligated to reply outside your normal working hours.<br>
<br>
> On 18. 5. 2022, at 8:32, Raman kumar <<a href="mailto:kumarraman.mca@gmail.com" target="_blank">kumarraman.mca@gmail.com</a>> wrote:<br>
> <br>
> Hello Team,<br>
> <br>
> While upgrading from BIND 9.16.10 to 9.18.2, we have observed high memory consumption.<br>
> <br>
> On version 9.16.2, RAM consumption was 3.8 GB. And on 9.18.2, RAM consumption is 4.5 GB. Due to this an increase of approximately 20 % memory is observed.<br>
> <br>
> Is this the expected behaviour or any tuning is needed?<br>
> <br>
> Thanks in advance.<br>
> <br>
> Regards,<br>
> Raman<br>
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</blockquote></div>