Re: [gentoo-user] RAM installed vs reported
2010/1/3 Thanasis thana...@asyr.hopto.org: on 01/04/2010 01:10 AM Krzysztof Halasa wrote the following: Thanasis thana...@asyr.hopto.org writes: Hmm..., but are EMBEDDED options suitable for a netbook like the A110L ? This EMBEDDED just means don't touch these unless you really know what you're doing. BTW I remember using VMSPLIT 2 GB : 2 GB on server-class machines, before they were upgraded to x86-64. Do you mean that I should try it? Is there any gain over using CONFIG_HIGHMEM4G ? Likely nothing noticeable, but here's a bit of a good coverage of the topic: http://kerneltrap.org/node/6067 -- Poison [BLX] Joshua M. Murphy
Re: [gentoo-user] RAM installed vs reported
on 01/04/2010 04:51 PM Joshua Murphy wrote the following: 2010/1/3 Thanasis thana...@asyr.hopto.org: on 01/04/2010 01:10 AM Krzysztof Halasa wrote the following: Thanasis thana...@asyr.hopto.org writes: Hmm..., but are EMBEDDED options suitable for a netbook like the A110L ? This EMBEDDED just means don't touch these unless you really know what you're doing. BTW I remember using VMSPLIT 2 GB : 2 GB on server-class machines, before they were upgraded to x86-64. Do you mean that I should try it? Is there any gain over using CONFIG_HIGHMEM4G ? Likely nothing noticeable, but here's a bit of a good coverage of the topic: http://kerneltrap.org/node/6067 Thanks, I think I'll give it a try. :-)
Re: [gentoo-user] RAM installed vs reported
on 01/04/2010 04:51 PM Joshua Murphy wrote the following: 2010/1/3 Thanasis thana...@asyr.hopto.org: on 01/04/2010 01:10 AM Krzysztof Halasa wrote the following: Thanasis thana...@asyr.hopto.org writes: Hmm..., but are EMBEDDED options suitable for a netbook like the A110L ? This EMBEDDED just means don't touch these unless you really know what you're doing. BTW I remember using VMSPLIT 2 GB : 2 GB on server-class machines, before they were upgraded to x86-64. Do you mean that I should try it? Is there any gain over using CONFIG_HIGHMEM4G ? Likely nothing noticeable, but here's a bit of a good coverage of the topic: http://kerneltrap.org/node/6067 Which one option should I choose: ( ) 2G/2G user/kernel split or ( ) 2G/2G user/kernel split (for full 2G low memory) ?
Re: [gentoo-user] RAM installed vs reported
on 01/04/2010 07:51 PM Thanasis wrote the following: on 01/04/2010 04:51 PM Joshua Murphy wrote the following: 2010/1/3 Thanasis thana...@asyr.hopto.org: on 01/04/2010 01:10 AM Krzysztof Halasa wrote the following: Thanasis thana...@asyr.hopto.org writes: Hmm..., but are EMBEDDED options suitable for a netbook like the A110L ? This EMBEDDED just means don't touch these unless you really know what you're doing. BTW I remember using VMSPLIT 2 GB : 2 GB on server-class machines, before they were upgraded to x86-64. Do you mean that I should try it? Is there any gain over using CONFIG_HIGHMEM4G ? Likely nothing noticeable, but here's a bit of a good coverage of the topic: http://kerneltrap.org/node/6067 Thanks, I think I'll give it a try. :-) I tried option: 2G/2G user/kernel split (for full 2G low memory), but X would not start. So i reverted back to CONFIG_HIGHMEM4G.
Re: [gentoo-user] RAM installed vs reported
on 01/01/2010 03:38 PM Krzysztof Halasa wrote the following: Thanasis thana...@asyr.hopto.org writes: Depends on the split used. With 2 GB : 2 GB you can have all-lowmem 1.5 GB RAM, without CONFIG_HIGHMEM*. 2 GB of per-process address space is usually not a problem. How do you implement that? What do you mean 2GB:2GB split ? See make menuconfig, Processor type and features - Memory split. You need to select EMBEDDED and EXPERIMENTAL first. What you need for 1.5 GB RAM is VMSPLIT_2G. The idea is that the CPU address space is divided: ca. 2 GB (in this configuration) for user space (for each process - instead of 3 GB), 2 GB - 128 MB (or something like that, I don't remember exactly) for physical RAM, and the last 128 MB or so for PCI devices and other things. Hmm..., but are EMBEDDED options suitable for a netbook like the A110L ?
Re: [gentoo-user] RAM installed vs reported
on 01/04/2010 01:10 AM Krzysztof Halasa wrote the following: Thanasis thana...@asyr.hopto.org writes: Hmm..., but are EMBEDDED options suitable for a netbook like the A110L ? This EMBEDDED just means don't touch these unless you really know what you're doing. BTW I remember using VMSPLIT 2 GB : 2 GB on server-class machines, before they were upgraded to x86-64. Do you mean that I should try it? Is there any gain over using CONFIG_HIGHMEM4G ?
Re: [gentoo-user] RAM installed vs reported
on 12/31/2009 04:59 PM Krzysztof Halasa wrote the following: Thanasis thana...@asyr.hopto.org writes: I thought CONFIG_HIGHMEM4G had to do with more than 4GB of RAM. Now I can see that the associated help says it is for an amount between 1 and 4GB. Depends on the split used. With 2 GB : 2 GB you can have all-lowmem 1.5 GB RAM, without CONFIG_HIGHMEM*. 2 GB of per-process address space is usually not a problem. How do you implement that? What do you mean 2GB:2GB split ?
[gentoo-user] RAM installed vs reported
I have a netbook (Acer Aspire One A110L) and installed a 1GB DDR2 in the available slot, for a total of 1.5GB or RAM. The BIOS reports it as 1.5GB and so does grml linux (booting from usb), but the installed gentoo linux reports only 904600 kB: # free total used free sharedbuffers cached Mem:904600 82316 822284 0 9752 37712 -/+ buffers/cache: 34852 869748 Swap: 1638588 01638588 # cat /proc/meminfo MemTotal: 904600 kB MemFree: 822284 kB Buffers:9752 kB Cached:37712 kB SwapCached:0 kB Active:32232 kB Inactive: 28780 kB Active(anon): 13848 kB Inactive(anon):0 kB Active(file): 18384 kB Inactive(file):28780 kB Unevictable: 0 kB Mlocked: 0 kB SwapTotal: 1638588 kB SwapFree:1638588 kB Dirty: 4 kB Writeback: 0 kB AnonPages: 13548 kB Mapped:11256 kB Shmem: 300 kB Slab: 10356 kB SReclaimable: 6132 kB SUnreclaim: 4224 kB KernelStack:1424 kB PageTables: 892 kB NFS_Unstable: 0 kB Bounce:0 kB WritebackTmp: 0 kB CommitLimit: 2090888 kB Committed_AS: 73552 kB VmallocTotal: 122880 kB VmallocUsed:9688 kB VmallocChunk: 109832 kB DirectMap4k: 11832 kB DirectMap4M: 905216 kB I suspect it has to do with my kernel (2.6.32-gentoo-r1) configuration, but do not know where to look. Any suggestions ?
Re: [gentoo-user] RAM installed vs reported
Am Mittwoch 30 Dezember 2009 11:49:39 schrieb Thanasis: I have a netbook (Acer Aspire One A110L) and installed a 1GB DDR2 in the available slot, for a total of 1.5GB or RAM. The BIOS reports it as 1.5GB and so does grml linux (booting from usb), but the installed gentoo linux reports only 904600 kB: With more than 1G of memory, you should set CONFIG_HIGHMEM4G=y. HTH... Dirk
Re: [gentoo-user] RAM installed vs reported
on 12/30/2009 01:08 PM Dirk Heinrichs wrote the following: Am Mittwoch 30 Dezember 2009 11:49:39 schrieb Thanasis: I have a netbook (Acer Aspire One A110L) and installed a 1GB DDR2 in the available slot, for a total of 1.5GB or RAM. The BIOS reports it as 1.5GB and so does grml linux (booting from usb), but the installed gentoo linux reports only 904600 kB: With more than 1G of memory, you should set CONFIG_HIGHMEM4G=y. HTH... Dirk I thought CONFIG_HIGHMEM4G had to do with more than 4GB of RAM. Now I can see that the associated help says it is for an amount between 1 and 4GB. That should be it. The option name confused me. I will try it and report back. Thanks :-)
