0
votes
0answers
26 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 ...
1
vote
1answer
2k views

How to optimize Linux Mint performance

I'm running Linux Mint 14 on notebook. This notebook is rather old and really weak. Linux Mint shows better performance than Win7, but newertheless it's far from perfect. What can I do to speed up my ...
3
votes
1answer
497 views

Increasing value of sched_latency_ns and sched_min_granularity_ns

Why do I get an error message when I try to increase the values of these two parameters: #cat /proc/sys/kernel/sched_latency_ns 1000000000 #echo 2000000000 > /proc/sys/kernel/sched_latency_ns ...
3
votes
1answer
217 views

Using HDPARM to tune drives

Can HDPARM reallt be used to tune and enhance performance on drives? I've seen tutorials but does it really make a difference?
1
vote
1answer
4k views

How much memory does this java process consumes? pmap and top's result are conflicted

I just want to know the exact amount of memory one process consumes. pgrep java -l 21786 java The total memory I have is 1GB: [root@home tmp]# free -m total used free ...
0
votes
1answer
2k views

How can I find the processes which use the most memory? [duplicate]

Possible Duplicate: How can I display the memory usage of each process if i do a 'ps -ef' For example, how can I find the top 20 processes that occupy the most memory? My Linux ...
1
vote
1answer
2k views

Ubuntu slows terribly on disk access

I'm very new to Linux systems but not computer systems. I installed Ubuntu on my laptop and it took a little longer to load then I'd like but seemed okay. The problem showed itself more seriously when ...
1
vote
1answer
228 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?
2
votes
1answer
504 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 ...