Dear All, I have recently installed centOS 5 on DELL pentium 2.7ghz (model optiplex GX270) and have 512 memory but the OS free command show me Mem: 473876 469892 3984 0 11288 69384 -/+ buffers/cache: 389220 84656 Swap: 1020088 0 1020088 also cat /proc/meminfo show me same MemTotal: 473876 kB MemFree: 4108 kB Buffers: 11040 kB Cached: 69376 kB SwapCached: 0 kB Active: 374072 kB Inactive: 67712 kB HighTotal: 0 kB HighFree: 0 kB LowTotal: 473876 kB LowFree: 4108 kB also top gives me the same info why i am loosing the memory.. appreciate your help Thanks n reagrds simon -- Network Administrator
----- Original Message ----- From: "simon" <mailadmin at baladia.gov.kw> To: "CentOS mailing list" <centos at centos.org> Sent: Saturday, July 28, 2007 7:47:20 PM (GMT+1000) Australia/Brisbane Subject: [CentOS] memory query Dear All, I have recently installed centOS 5 on DELL pentium 2.7ghz (model optiplex GX270) and have 512 memory but the OS free command show me Mem: 473876 469892 3984 0 11288 69384 -/+ buffers/cache: 389220 84656 Swap: 1020088 0 1020088 also cat /proc/meminfo show me same MemTotal: 473876 kB MemFree: 4108 kB Buffers: 11040 kB Cached: 69376 kB SwapCached: 0 kB Active: 374072 kB Inactive: 67712 kB HighTotal: 0 kB HighFree: 0 kB LowTotal: 473876 kB LowFree: 4108 kB also top gives me the same info why i am loosing the memory.. appreciate your help Thanks n reagrds simon -- Network Administrator _______________________________________________ Does the gx270 have integrated video, ie on the motherboard ? If so the missing RAM is more than likely being used by your video card. -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.
On 28 July 2007, simon wrote:> I have recently installed centOS 5 on DELL pentium 2.7ghz (model > optiplex GX270) and have 512 memoryI do not have a CentOS 5 box yet, Below is on a CentOS 4.4 box. A low end Dell Dimension 2400 (Celeron 2.6 GHz, with 512 MB RAM and integrated video and sound). I hope someone running CentOS 5.0 can reply to you! Check out the manual for the Optiplex (and the BIOS settings) and the Support area of Dell.com and maybe you will find out where the missing RAM is used. There's also a Linux area, in the Dell Support forums. Lanny> [mailing-lists at dell2400 ~]$ free > total used free shared buffers cached > Mem: 514440 511260 3180 0 22444 266204 > -/+ buffers/cache: 222612 291828 > Swap: 1044184 0 1044184> [mailing-lists at dell2400 ~]$ cat /proc/meminfo > MemTotal: 514440 kB > MemFree: 2856 kB > Buffers: 22560 kB > Cached: 266208 kB > SwapCached: 0 kB > Active: 235784 kB > Inactive: 180100 kB > HighTotal: 0 kB > HighFree: 0 kB > LowTotal: 514440 kB > LowFree: 2856 kB > SwapTotal: 1044184 kB > SwapFree: 1044184 kB > Dirty: 8 kB > Writeback: 0 kB > Mapped: 165624 kB > Slab: 23660 kB > CommitLimit: 1301404 kB > Committed_AS: 521484 kB > PageTables: 2696 kB > VmallocTotal: 499704 kB > VmallocUsed: 3720 kB > VmallocChunk: 495604 kB > HugePages_Total: 0 > HugePages_Free: 0 > Hugepagesize: 4096 kB
On 28 July 2007, simon wrote:> > I have recently installed centOS 5 on DELL pentium 2.7ghz (model > > optiplex GX270) and have 512 memoryI received the CentOS 5.0 DVD today. ASAP, I will upgrade from 4.4. After that, I will let you know how 5.0 sees the available RAM, in the same box. The first place you need to look, is in the BIOS, to see how the box sees the RAM. If it doesn't see the RAM as available, CentOS won't either.
On 28 July 2007, simon wrote:> I have recently installed centOS 5 on DELL pentium 2.7ghz (model > optiplex GX270) and have 512 memorySimon: Below is on the same box, after I did a clean install of CentOS 5.0. Still showing 512 MB of RAM, as it did with CentOS 4.4, which is what's installed in the box. Look at the information in the BIOS of that box and see what it shows you there. I'm using x86. Lanny> [mailing-lists at dell2400 ~]$ free > total used free shared buffers cached > Mem: 514084 507700 6384 0 11148 226780 > -/+ buffers/cache: 269772 244312 > Swap: 1044184 144 1044040 > [mailing-lists at dell2400 ~]$ cat /proc/meminfo > MemTotal: 514084 kB > MemFree: 5704 kB > Buffers: 11292 kB > Cached: 226316 kB > SwapCached: 0 kB > Active: 281128 kB > Inactive: 130944 kB > HighTotal: 0 kB > HighFree: 0 kB > LowTotal: 514084 kB > LowFree: 5704 kB > SwapTotal: 1044184 kB > SwapFree: 1044040 kB > Dirty: 176 kB > Writeback: 0 kB > AnonPages: 174476 kB > Mapped: 62020 kB > Slab: 21928 kB > PageTables: 4396 kB > NFS_Unstable: 0 kB > Bounce: 0 kB > CommitLimit: 1301224 kB > Committed_AS: 684364 kB > VmallocTotal: 507896 kB > VmallocUsed: 4748 kB > VmallocChunk: 502772 kB > HugePages_Total: 0 > HugePages_Free: 0 > HugePages_Rsvd: 0 > Hugepagesize: 4096 kB > [mailing-lists at dell2400 ~]$