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0answers
24 views

Does an NFS client incur read/write page faults proportional to bytes read to/written from server?

Perhaps my knowledge of virtual memory has been supplanted by too much other junk. Recently I ran some database benchmark tests where all data was to be stored on an NFS server and accessed via NFSv3 ...
3
votes
0answers
82 views

On Linux, what is the size of pages reported by vmstat command and/or /proc/vmstat?

As many have stated on StackExchange and elsewhere, a typical kernel/mmu page size for Linux is 4 KiB. I have verified that this is the case on my OS/architecture (RHEL 6.6, Intel Xeon E5-2690). Now ...
1
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1answer
183 views

How can I maximize the memory usage of a single Windows process?

I have a system with a large amount of memory. Right now, to prevent a single application from paging, I've disable the paging file completely. The issue that I'm running into is that I cannot ...
0
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1answer
333 views

Is it possible to force a specific program to use virtual memory?

Let say I have 1GB RAM Ubuntu, I need to run both memcached and redis on the same machine The usage of memcached is quite heavy (e.g. 1K read per second) and redis is less heavy (but still 10 read ...
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votes
3answers
114 views

Linux makes cache for swap. what for?

It looks like joke: swapfile on "ramdysk" in 64bits system? I look into file: /proc/meminfo and made some investigation. Look for line: SwapCached: nnnnn kB . One is what I don't understand. ...
0
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1answer
127 views

SMS paging sends a new number every time

We have set up SQL Server to send out alerts when jobs fail. Text messages are sent to 1234567890@txt.ATT.Net, and they show up on our phones. However, the alerts come in from a weird 9-digit number ...
2
votes
1answer
3k views

Is it bad if your Virtual Bytes count is high in an application pool in IIS?

Related to What does Virtual Bytes mean in Worker Processes pane in IIS7.5 Manager? I have a server running a few different sites. We're seeing some performance and memory issues. When I go to ...
1
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1answer
755 views

Why is Windows writing to Page File when I have 4GB of free memory? [closed]

I have 8GB of memory on my machine, running Windows 7 Ultimate x64. I put my laptop to sleep and then woke it up. As it was coming back to life I noticed a lot of activity reads and writes from/to the ...
2
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1answer
456 views

Windows Server: Prevent process swapping/paging

Is there a possibility to prevent swapping for a single process? This process is an in-memory-database and should not be moved to virtual ram. all other processes should still be swap-able. I ...
2
votes
2answers
139 views

Tuning windows virtual memory/paging for a specific workload

I have a specific ram-intensive program I run which slows down my entire system for hours after each run - does the Windows NT 6.0/6.1 kernel have any tunables to encourage processes' working sets to ...
2
votes
1answer
113 views

Is it Good to place Windows Server paging files on seperate fast storage?

How much of an impact does the performance of the storage system hosting the paging files of windows machines (I guess both physical or virtual instances like VMWare / KVM / Xen / Whatever)?
1
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1answer
3k views

How to resolve “paging space I/Os blocked with no psbuf”

We are new to AIX environment, and experiencing some performance issue running our application. When it happens, we use the vmstat command and found the fre value under memory usually very low. A ...
0
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1answer
2k views

Excessive Paging in Window Server 2003 64 bit

All, Thanks in advance for your help. I need to understand how to get a handle on what I consider is excessive paging on one of my servers. The server is a 16 processor 64-bit Windows Server 2003 - ...
17
votes
9answers
2k views

Is there a paging version of `watch`?

Under a UNIX shell, how can I get a similar effect to the watch command, but with paging so that I can scroll around in the output if it takes up more than one screen? In other words, I want a ...
5
votes
2answers
3k views

Is there a way to configure bash to always page output?

I'd like to configure bash to page the output of all commands. Essentially, I want bash to behave as if every command I enter ended with '| less'. Is this possible?
4
votes
7answers
3k views

graphic visualization of a process memory

Is there any tool that draws a graphic visualization of a process' memory? I'd like a graph showing the percentage of pages in physical memory and in the page file.