--Apple-Mail=_133EB0FB-0246-464A-B1A7-A1F3EA7178BA Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 What does /proc/meminfo says ? Memory usage is a complex thing.
Le 10 ao=C3=BBt 2017 =C3=A0 23:23, Wesley Stewart = <wstewart3@gmail.com> a =C3=A9crit : =20 I am a little confused on why my CentOS box is using so much RAM. I = currently have a small test setup which only has 12GB of ram total. =20 When I log into the administrative interface it tells me: =20 Memory =20 4.3 Available of 15.5 GiB=20 Over commit: 39% (allocated 45%) =20 11.1 GB Used =20 Currently I am only running 3 VMs with memory allocations as follows: =20 Defined Memory: 1024 MB Physical Memory Guaranteed: 1024 MB =20 Defined Memory: 3072 MB Physical Memory Guaranteed: 3072 MB =20 Defined Memory: 2048 MB Physical Memory Guaranteed: 2048 MB Or 6144MB used by VM =20 If I SSH into my ovirt host, and run TOP and sort by memory, the top = usage items are: 31896 qemu 21.5% 727:21.44 qemu-kvm 6008 qemu 14.6% 190:33.70 qemu-kvm 3019 ovirt 13.6% 35:47.64 java 5800 qemu 8.5% 784:26.88 qemu-kvm 2565 ovirt 3.9% 62:58.00 java =20 Everything else is pretty small compared, but for the OVIRT/QEMU we = roughly get Total: 62% =3D 7.45GB =20 So I am a bit confused as to the Ram being reported to me by the = system (15.5GGB, but the system only has 12GB), and assuming OVIRT is = using around 7-8GB, does a bare minimal install of CentOS really need = 4-5GB of Ram to run? =20 This is a bare minimal install of CentOS7 running only Webmin and = oVirt. I think there are several things I don't understand here, and I = am quite new to oVirt and would like to learn, so please excuse my = inexperience if this is a silly question! =20 Thanks either way, I am really happy I ditched my ESXi box :D =20 =20 =20 _______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
--Apple-Mail=_133EB0FB-0246-464A-B1A7-A1F3EA7178BA Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=utf-8 <html><head><meta http-equiv=3D"Content-Type" content=3D"text/html = charset=3Dutf-8"></head><body style=3D"word-wrap: break-word; = -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" = class=3D"">What does /proc/meminfo says ?<div class=3D""><br = class=3D""></div><div class=3D"">Memory usage is a complex = thing.</div><div class=3D""><br class=3D""><div><blockquote type=3D"cite" = class=3D""><div class=3D"">Le 10 ao=C3=BBt 2017 =C3=A0 23:23, Wesley = Stewart <<a href=3D"mailto:wstewart3@gmail.com" = class=3D"">wstewart3@gmail.com</a>> a =C3=A9crit :</div><br = class=3D"Apple-interchange-newline"><div class=3D""><div dir=3D"ltr" = class=3D"">I am a little confused on why my CentOS box is using so much = RAM. I currently have a small test setup which only has <b = class=3D"">12GB</b> of ram total.<div class=3D""><br class=3D"">When I = log into the administrative interface it tells me:</div><div = class=3D""><br class=3D""></div><div class=3D""><h3 = style=3D"box-sizing:border-box;font-family:"Open = Sans",Helvetica,Arial,sans-serif;line-height:1.1;color:rgb(54,54,54);= margin-top:7px;margin-bottom:10px;font-size:16px" class=3D""><u = class=3D"">Memory</u></h3><div class=3D"gmail-current-values" = style=3D"box-sizing:border-box;border-bottom:1px solid = rgb(209,209,209);float:left;padding:0px 5px 10px = 0px;width:513.656px"><h1 class=3D"gmail-available-count gmail-pull-left" = style=3D"color:inherit;font-family:inherit;font-size:24px;box-sizing:borde= r-box;margin:3px = 0px;font-weight:300;line-height:1.1;padding-left:0px;padding-right:5px;flo= at:left">4.3</h1><div class=3D"gmail-pull-left gmail-available-text" = style=3D"color:rgb(51,51,51);font-family:"Open = Sans",Helvetica,Arial,sans-serif;font-size:12px;box-sizing:border-box= ;line-height:14px;margin:2px 0px;padding:0px 5px;float:left"><div = style=3D"box-sizing:border-box" class=3D"">Available</div><div = style=3D"box-sizing:border-box" class=3D"">of 15.5 = GiB </div></div><div = style=3D"color:rgb(54,54,54);font-family:"Open = Sans",Helvetica,Arial,sans-serif;font-size:12px;box-sizing:border-box= ;clear:left;padding-top:5px" class=3D"">Over commit: 39% (allocated = 45%)<br class=3D""><br class=3D"">11.1 GB Used</div><div = style=3D"color:rgb(54,54,54);font-family:"Open = Sans",Helvetica,Arial,sans-serif;font-size:12px;box-sizing:border-box= ;clear:left;padding-top:5px" class=3D""><br class=3D""></div><div = style=3D"color:rgb(54,54,54);font-family:"Open = Sans",Helvetica,Arial,sans-serif;font-size:12px;box-sizing:border-box= ;clear:left;padding-top:5px" class=3D"">Currently I am only running 3 = VMs with memory allocations as follows:</div><div = style=3D"color:rgb(54,54,54);font-family:"Open = Sans",Helvetica,Arial,sans-serif;font-size:12px;box-sizing:border-box= ;clear:left;padding-top:5px" class=3D""><br class=3D""></div><div = style=3D"box-sizing:border-box;clear:left;padding-top:5px" class=3D""><div= style=3D"box-sizing:border-box;clear:left;padding-top:5px" = class=3D""><font color=3D"#363636" face=3D"Open Sans, Helvetica, Arial, = sans-serif" class=3D""><span style=3D"font-size:12px" class=3D"">Defined = Memory:</span></font></div><div = style=3D"box-sizing:border-box;clear:left;padding-top:5px" = class=3D""><font color=3D"#363636" face=3D"Open Sans, Helvetica, Arial, = sans-serif" class=3D""><span style=3D"font-size:12px" class=3D"">1024 = MB</span></font></div><div = style=3D"box-sizing:border-box;clear:left;padding-top:5px" = class=3D""><font color=3D"#363636" face=3D"Open Sans, Helvetica, Arial, = sans-serif" class=3D""><span style=3D"font-size:12px" class=3D"">Physical = Memory Guaranteed:</span></font></div><div = style=3D"box-sizing:border-box;clear:left;padding-top:5px" = class=3D""><font color=3D"#363636" face=3D"Open Sans, Helvetica, Arial, = sans-serif" class=3D""><span style=3D"font-size:12px" class=3D"">1024 = MB</span></font></div><div = style=3D"box-sizing:border-box;clear:left;padding-top:5px" = class=3D""><font color=3D"#363636" face=3D"Open Sans, Helvetica, Arial, = sans-serif" class=3D""><span style=3D"font-size:12px" class=3D""><br = class=3D""></span></font></div><div = style=3D"box-sizing:border-box;clear:left;padding-top:5px" = class=3D""><font color=3D"#363636" face=3D"Open Sans, Helvetica, Arial, = sans-serif" class=3D""><span style=3D"font-size:12px" class=3D"">Defined = Memory:</span></font></div><div = style=3D"box-sizing:border-box;clear:left;padding-top:5px" = class=3D""><font color=3D"#363636" face=3D"Open Sans, Helvetica, Arial, = sans-serif" class=3D""><span style=3D"font-size:12px" class=3D"">3072 = MB</span></font></div><div = style=3D"box-sizing:border-box;clear:left;padding-top:5px" = class=3D""><font color=3D"#363636" face=3D"Open Sans, Helvetica, Arial, = sans-serif" class=3D""><span style=3D"font-size:12px" class=3D"">Physical = Memory Guaranteed:</span></font></div><div = style=3D"box-sizing:border-box;clear:left;padding-top:5px" = class=3D""><font color=3D"#363636" face=3D"Open Sans, Helvetica, Arial, = sans-serif" class=3D""><span style=3D"font-size:12px" class=3D"">3072 = MB</span></font></div><div = style=3D"box-sizing:border-box;clear:left;padding-top:5px" = class=3D""><font color=3D"#363636" face=3D"Open Sans, Helvetica, Arial, = sans-serif" class=3D""><span style=3D"font-size:12px" class=3D""><br = class=3D""></span></font></div><div = style=3D"box-sizing:border-box;clear:left;padding-top:5px" = class=3D""><font color=3D"#363636" face=3D"Open Sans, Helvetica, Arial, = sans-serif" class=3D""><span style=3D"font-size:12px" class=3D"">Defined = Memory:</span></font></div><div = style=3D"box-sizing:border-box;clear:left;padding-top:5px" = class=3D""><font color=3D"#363636" face=3D"Open Sans, Helvetica, Arial, = sans-serif" class=3D""><span style=3D"font-size:12px" class=3D"">2048 = MB</span></font></div><div = style=3D"box-sizing:border-box;clear:left;padding-top:5px" = class=3D""><font color=3D"#363636" face=3D"Open Sans, Helvetica, Arial, = sans-serif" class=3D""><span style=3D"font-size:12px" class=3D"">Physical = Memory Guaranteed:</span></font></div><div = style=3D"box-sizing:border-box;clear:left;padding-top:5px" = class=3D""><font color=3D"#363636" face=3D"Open Sans, Helvetica, Arial, = sans-serif" class=3D""><span style=3D"font-size:12px" class=3D"">2048 = MB</span></font></div><div = style=3D"box-sizing:border-box;clear:left;padding-top:5px" = class=3D""><font color=3D"#363636" face=3D"Open Sans, Helvetica, Arial, = sans-serif" class=3D""><span style=3D"font-size:12px" class=3D""><b = class=3D"">Or 6144MB used by VM</b></span></font></div><div = style=3D"box-sizing:border-box;clear:left;padding-top:5px" = class=3D""><font color=3D"#363636" face=3D"Open Sans, Helvetica, Arial, = sans-serif" class=3D""><span style=3D"font-size:12px" class=3D""><br = class=3D""></span></font></div><div = style=3D"box-sizing:border-box;clear:left;padding-top:5px" = class=3D""><font color=3D"#363636" face=3D"Open Sans, Helvetica, Arial, = sans-serif" class=3D""><span style=3D"font-size:12px" class=3D"">If I = SSH into my ovirt host, and run TOP and sort by memory, the top usage = items are:</span></font></div><div = style=3D"box-sizing:border-box;clear:left;padding-top:5px" = class=3D""><font color=3D"#363636" face=3D"Open Sans, Helvetica, Arial, = sans-serif" class=3D""><div = style=3D"font-size:12px;box-sizing:border-box;clear:left;padding-top:5px" = class=3D"">31896 qemu <b class=3D"">21.5%</b> = 727:21.44 qemu-kvm</div><div = style=3D"font-size:12px;box-sizing:border-box;clear:left;padding-top:5px" = class=3D""> 6008 qemu <b = class=3D"">14.6%</b> 190:33.70 qemu-kvm</div><div = style=3D"font-size:12px;box-sizing:border-box;clear:left;padding-top:5px" = class=3D""> 3019 ovirt <b = class=3D"">13.6%</b> 35:47.64 java</div><div = style=3D"font-size:12px;box-sizing:border-box;clear:left;padding-top:5px" = class=3D""> 5800 qemu <b = class=3D"">8.5%</b> 784:26.88 qemu-kvm</div><div = style=3D"font-size:12px;box-sizing:border-box;clear:left;padding-top:5px" = class=3D""> 2565 ovirt <b = class=3D"">3.9%</b> 62:58.00 java</div><div = style=3D"font-size:12px;box-sizing:border-box;clear:left;padding-top:5px" = class=3D""><br class=3D""></div><div = style=3D"font-size:12px;box-sizing:border-box;clear:left;padding-top:5px" = class=3D"">Everything else is pretty small compared, but for the = OVIRT/QEMU we roughly get<br class=3D""></div><div = style=3D"font-size:12px;box-sizing:border-box;clear:left;padding-top:5px" = class=3D""><b class=3D"">Total: 62% =3D 7.45GB<br class=3D""><br = class=3D""></b></div><div = style=3D"font-size:12px;box-sizing:border-box;clear:left;padding-top:5px" = class=3D"">So I am a bit confused as to the Ram being reported to me by = the system (15.5GGB, but the system only has 12GB), and assuming OVIRT = is using around 7-8GB, does a bare minimal install of CentOS really need = 4-5GB of Ram to run?</div><div = style=3D"font-size:12px;box-sizing:border-box;clear:left;padding-top:5px" = class=3D""><br class=3D""></div><div = style=3D"font-size:12px;box-sizing:border-box;clear:left;padding-top:5px" = class=3D"">This is a bare minimal install of CentOS7 running only Webmin = and oVirt. I think there are several things I don't understand = here, and I am quite new to oVirt and would like to learn, so please = excuse my inexperience if this is a silly question!</div><div = style=3D"font-size:12px;box-sizing:border-box;clear:left;padding-top:5px" = class=3D""><br class=3D""></div><div = style=3D"font-size:12px;box-sizing:border-box;clear:left;padding-top:5px" = class=3D"">Thanks either way, I am really happy I ditched my ESXi box = :D</div><div = style=3D"font-size:12px;box-sizing:border-box;clear:left;padding-top:5px" = class=3D""><b class=3D""><br class=3D""></b></div><div = style=3D"font-size:12px;box-sizing:border-box;clear:left;padding-top:5px" = class=3D""><b class=3D""><br class=3D""></b></div></font></div></div><div = style=3D"color:rgb(54,54,54);font-family:"Open = Sans",Helvetica,Arial,sans-serif;font-size:12px;box-sizing:border-box= ;clear:left;padding-top:5px" class=3D""><br = class=3D""></div></div></div></div> _______________________________________________<br class=3D"">Users = mailing list<br class=3D""><a href=3D"mailto:Users@ovirt.org" = class=3D"">Users@ovirt.org</a><br = class=3D"">http://lists.ovirt.org/mailman/listinfo/users<br = class=3D""></div></blockquote></div><br class=3D""></div></body></html>= --Apple-Mail=_133EB0FB-0246-464A-B1A7-A1F3EA7178BA--