0
votes
1answer
46 views

Does fsfreeze flush FS caches?

If I run fsfreeze on a mounted filesystem, it will not be possible to perform new "write" operations on that FS until it is unfrozen, and "ongoing" writes should "complete". Now, will fsfreeze also ...
2
votes
2answers
194 views

Memory mapping files for a blazing fast webserver on Linux

Is there any simple way of telling Linux to keep a directory of files cached in memory? I realized that Node.Js and Apache are spending most time on file I/O, making users wait if you have a lot of ...
2
votes
1answer
156 views

How long does Linux (by default) cache information about files in the disk?

I'm testing whether some changes I made to some code are effective or not. For this, I need to know how the file system cache normally works. I'm assuming the default is what we're getting, since we ...
-1
votes
1answer
334 views

limit filesystem cache size for specific files under linux

I have a directory with many files with high access rate. And I need to reduce the cache pressure of this specific directory to prevent other files (like my home directory files) from the pushing out ...
0
votes
2answers
225 views

File system cache / drop cache(debian)

if i play those command : sync echo 3 > /proc/sys/vm/drop_caches Will the server be force to read the correct file on disk until i put 0 again ? Or this work only one time, and if i want to ...
0
votes
1answer
205 views

Linux Filesystem Cache using mounts

I have two servers s1 and s2 and two apps a1 and a2. a1 and a2 are installed on s1 and share some files that are accessible via a mount on s2. If a1 writes a file onto the s2 server and a2 the ...
0
votes
0answers
221 views

File-level SSD cache

My windows development environment gets pretty slow sometimes, it's a huge code base. I was thinking of speeding this up by using an SSD, but I want a way to do it while not requiring myself to carry ...
3
votes
4answers
498 views

Does ZFS cache Compressed or Uncompressed data in a ZFS file-system with compression turned on?

ZFS supports file-system compression and it also caches frequently or recently accessed data. If a system has lots of CPU but the underlying data storage system is slow. It is possible that ZFS would ...
2
votes
1answer
647 views

Recommended technology for layered disk cache in linux

I originally asked this on superuser but it occurs to me it's more more of a server topic. I've just bought a 6-core Phenom with 16G of RAM. I use it primarily for compiling and video encoding (and ...
0
votes
3answers
162 views

Filesystem cache accessible via HTTP?

After searching the web for hours and couldn't find what I was looking for, I thought someone here might have an idea ;-) I'm looking for Linux a program that will cache in memory a designated ...
2
votes
2answers
2k views

Refresh file access time under Linux / Discard disk read cache

I am making use of the access time to analyse some build process, but it is not working the way I want: the access time is updated the first time I read the file, then it stays the same for a long ...
1
vote
2answers
121 views

Diskless login with Linux/OpenSolaris

Is it possible to enable a Linux or OpenSolaris based server to process standard unix login requests without spinning up the hard drive holding the root partition? I have a Nexenta-based (1) server ...