Re: [ubuntu-uk] Latency on 10.04LTS WUBI
On Wed, 2010-09-08 at 06:59 +0100, Sean Miller wrote: My Compaq laptop, running Ubuntu, died a death last week... so have now reverted to a Windows 7 Advent and - as one does - I thought let's dual-boot... WUBI seemed an option, so that's what I did. Alas, I appear to have some issue with latency as if I type some characters get missed out... so, for instance, if I was to type (at full speed) I would like to go to the park today to feed the ducks I might get I wold lik t g totheprk tday tfed thucks Any ideas? Sean Wubi utilises the hardware directly. The only latency issues you should have are with disk i/o. Wubi basically sets up a virtual partition on the windows HD and and does a pretty standard install into that virtual drive. The only things I can think of is that the partition was too small or there is an issue with the drive itself. -- Seek That Thy Might Know http://www.davmor2.co.uk signature.asc Description: This is a digitally signed message part -- ubuntu-uk@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-uk https://wiki.ubuntu.com/UKTeam/
Re: [ubuntu-uk] Latency on 10.04LTS WUBI
On 8 September 2010 12:50, Dave Morley davm...@davmor2.co.uk wrote: Wubi utilises the hardware directly. The only latency issues you should have are with disk i/o. Wubi basically sets up a virtual partition on the windows HD and and does a pretty standard install into that virtual drive. The only things I can think of is that the partition was too small or there is an issue with the drive itself. Can't be that. because it's the same drive for Windows 7 (from which I'm typing) and there is no such latency. All very odd... Sean -- ubuntu-uk@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-uk https://wiki.ubuntu.com/UKTeam/
Re: [ubuntu-uk] Latency on 10.04LTS WUBI
Hi there Sean, Have you tried to use an external USB keyboard to see if the problem persists? Daniel On 8 September 2010 12:53, Sean Miller s...@seanmiller.net wrote: On 8 September 2010 12:50, Dave Morley davm...@davmor2.co.uk wrote: Wubi utilises the hardware directly. The only latency issues you should have are with disk i/o. Wubi basically sets up a virtual partition on the windows HD and and does a pretty standard install into that virtual drive. The only things I can think of is that the partition was too small or there is an issue with the drive itself. Can't be that. because it's the same drive for Windows 7 (from which I'm typing) and there is no such latency. All very odd... Sean -- ubuntu-uk@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-uk https://wiki.ubuntu.com/UKTeam/ -- ubuntu-uk@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-uk https://wiki.ubuntu.com/UKTeam/
Re: [ubuntu-uk] Latency on 10.04LTS WUBI
On 8 September 2010 12:56, Daniel Case danielcas...@googlemail.com wrote: Hi there Sean, Have you tried to use an external USB keyboard to see if the problem persists? Don't have one at the moment, but might borrow one and try. But as the keyboard in WIndows 7 is same as the one in Ubuntu I am not sure why that would be the case - are you suggesting it's keyboard drivers or something? Sean -- ubuntu-uk@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-uk https://wiki.ubuntu.com/UKTeam/
Re: [ubuntu-uk] Latency on 10.04LTS WUBI
On 8 September 2010 13:07, Sean Miller s...@seanmiller.net wrote: Don't have one at the moment, but might borrow one and try. But as the keyboard in WIndows 7 is same as the one in Ubuntu I am not sure why that would be the case - are you suggesting it's keyboard drivers or something? It could well be down to one of the chips on the motherboard that interacts with the keyboard. This is not uncommon. Using an external keyboard will help to eliminate or single out this possibility. Cheers, Al. -- ubuntu-uk@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-uk https://wiki.ubuntu.com/UKTeam/
Re: [ubuntu-uk] Latency on 10.04LTS WUBI
On 8 September 2010 13:13, Alan Pope a...@popey.com wrote: It could well be down to one of the chips on the motherboard that interacts with the keyboard. This is not uncommon. Using an external keyboard will help to eliminate or single out this possibility. Just bought PC Pro which has a Live CD of Ubuntu - may try booting from that and see if I exhibit the same symptoms. If I don't, will be interesting to know what the potential resolution might be. Sean -- ubuntu-uk@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-uk https://wiki.ubuntu.com/UKTeam/
Re: [ubuntu-uk] Latency on 10.04LTS WUBI
Indeed, sorry I should have explained my reasons for trying it. Daniel -- ubuntu-uk@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-uk https://wiki.ubuntu.com/UKTeam/
Re: [ubuntu-uk] Latency on 10.04LTS WUBI
On 8 September 2010 13:16, Sean Miller s...@seanmiller.net wrote: Just bought PC Pro which has a Live CD of Ubuntu - may try booting from that and see if I exhibit the same symptoms. Worth doing but might not prove much. If I don't, will be interesting to know what the potential resolution might be. Usually some kernel parameter needs tweaking to mitigate or workaround the issue. Cheers, Al. -- ubuntu-uk@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-uk https://wiki.ubuntu.com/UKTeam/
Re: [ubuntu-uk] Latency on 10.04LTS WUBI
On Wed, Sep 8, 2010 at 1:21 PM, Alan Pope a...@popey.com wrote: Just as an aside (and I'm not discounting the possibility of hardware issue - this seems likely) what's the drive fragmentation like on the host drive? The curse of installing an Ext3/4 container on an NTFS partition is that the container is subject to the same issues as the host drivewhile Ext3/4 are not subject to fragmentation, if the host drive is, that can cause performance issues. This is why it's preferred to install on a separate partition dedicated to linux on a machine and dual boot that way. Just an observation... P -- ubuntu-uk@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-uk https://wiki.ubuntu.com/UKTeam/
Re: [ubuntu-uk] Latency on 10.04LTS WUBI
On Wed, Sep 8, 2010 at 2:00 PM, Sean Miller s...@seanmiller.net wrote: Why would fragmentation cause latency? Sean Heavy load on disk controllers while they seek would add to the overall CPU load. I wouldn't say this is likely to be the exclusive cause of the symptoms you are seeing - just a pitfall that I would associate with WUBI and it's performance in relation to a full install on it's own partition/disk compared to performance within a container on a non-native formatted disk. The use of a container adds another potential cause of problems... -- ubuntu-uk@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-uk https://wiki.ubuntu.com/UKTeam/
