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3
votes
2answers
577 views

Optimum Swappiness for a Linux System

I have a 64-Bit Linux PC with 4 GB of RAM. How can I find the optimum value of swappiness (/proc/sys/vm/swappiness) to be set? The default is 60 and I don't think it works best for everyone. I am ...
0
votes
2answers
36 views

What happens if use different ram chips?

I have an Asus M4A785TD-V EVO Motherboard. Considering this, What happens if I plugin 2 ram chips of different frequency and different latancies? Do both work independently at their respective configs ...
1
vote
1answer
238 views

Linux swap position on hdd

As far as I know hard drives are faster at the beginning of the disk. If this is true, why does Ubuntu put the swap partition to the back of the disk by default?
0
votes
1answer
477 views

How to set permament TCP Windows Size in Windows XP

I'm checking real throughput of my network using iperf/jperf. Test with speedtest.net shows 25/10 - but jperf shows only 5. So I change in jperf the TCP Window Size into 256K - and now jperf shows ...
0
votes
1answer
54 views

Split database index and table files with SSD?

I know in the good old days it was recommended that indexs and tables were placed on different drives to improve database performance. Is this still the case with SSDs when connected with SATA3? With ...
0
votes
1answer
19 views

how to compare installed programms on one pc with other performance issues

I have 2 laptops, both run Windows 7,identical configuration. One of them how ever is running extremely slow it takes a very long time to start up and shutdown and also if I need to run a programm it ...
2
votes
0answers
81 views

Utilizing the full power of my workstation

I am not a gamer. Used to be, 10+ years ago. My workstation is strictly for business: Quickbooks Excel Access General Business QuickBooks is tied to a synchronization engine that is synchronizing, ...
1
vote
0answers
71 views

Which Windows services and startup programs can I disable/modify to optimize performance/security?

For Windows Vista SP2 and Windows 7: I use this stand-alone (no LAN) computer at home exclusively to browse the internet, nothing else!.. I have another computer I use for development and testing ...
0
votes
0answers
94 views

Performance of LVM's 'lvconvert' when mirroring is low

I recently setup a box to use LVM mirroring. I have two separate 2 terabyte hard drives that are SATA drives. I am using the controller on the motherboard and a add-in card in a pci express slot. Once ...
0
votes
0answers
28 views

Internet browsing in bootcamp much faster than OS X

Hardware: iMac mid 2010 i3 processor 8GB ram Crucial M500 256GB SSD 120 Mbps internet through Time Capsule 4th generation connected with 1 Gbps cat 6 cable Software: OS X Lion Windows 7 through ...
0
votes
0answers
27 views

The relationship between commit charge, standby lists and available physical memory?

Saw this thread but I believe it does not fully answer my question so here goes. I am on Windows 8 Enterprise, 4 Gb RAM on board, pagefile enabled. I am looking at my performance indicators and I see ...
0
votes
0answers
44 views

Multipath tcp application-level performance measurement

I am working on a project related to Multipath tcp and I want to measure the goodput and the RTT at the application level. I don't want to use a traditional tool(netperf, iperf, ...) and I want to ...
0
votes
0answers
16 views

ext3 multi process write fragmentation

If multiple processes write to large files on an ext3 filesystem, like cping simultaneous, will the written files be interspersed in small blocks, or does ext3 handle the situation in a better way?
0
votes
0answers
294 views

Is a remote desktop session a background service

I have some virtual machines (xp, windows 7) running on hyper-v for developing and testing purpose. I access those vms only by remote desktop and run on them various software I was wondering if i ...