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3
votes
2answers
154 views

Linux: What application is using my ram cache

I am wondering if I can see which application is using my ram buffer and cache. Also is there any time specified in kernel, when data is dropped from cache. My Ram is being full used by buffer and ...
2
votes
1answer
240 views

Linux buffer memory always stays at zero

One of my hosted server is a Xen guest running Debian and linux kernel 2.6.32 then 2.6.38. It has been running fine for quite some time (more than a year) but I recently noticed something weird. For ...
1
vote
1answer
95 views

Is there a way to get current txqueue utilization on e.g. eth0 or tun device?

I have detected drops on my tun0 interface. They seem to have been caused by low txqueuelen setting. Now as I increased the txqueuelen value for the network device and there are no more drops yet - ...
0
votes
1answer
82 views

Bitnami apache + php-fpm stack can't disable buffer

I'm trying to get my service running that requires it output without a buffer. Is it possible to use php-fpm without a buffer with apache? <IfDefine USE_PHP_FPM> <Proxy ...
2
votes
0answers
114 views

Tcp window size won't go above 130048

I have 2 servers set up with about 80ms latency between them. Both are centos 6 and run a java app that transfers data from on location to another. Both are on 1gbps connections. I have been trying ...
1
vote
0answers
51 views

OpenVPN sndbuf and rcvbuf

I would like to know what is the difference between the sndbuf and rcvbuf buffer used by OpenVPN and net.core.w/rmem_default or net.ipv4.tcp_r/wmem. What does OpenVPN do when some value a provided ...
0
votes
0answers
8 views

nginx proxy_buffering and send response to client immediately

To break the question down to one sentence: Is it Possible to turn on proxy_buffering in nginx, but sending the response of the backend server immediately to the client when the client is fast enough ...
0
votes
0answers
22 views

MySQL read-buffer-size overflow

What will happen if a low value was assigned in my.cnf to any of the per-thread buffers, when it fills? I'm thinking of possible scenarios: MySQL will gracefully call realloc for additional block ...
0
votes
0answers
88 views

reducing bufferbloat in linux web server

I'm looking for all the buffers I can tune in linux as well as their order of operation. On the server, nearly all operations are run over the TCP protocol. I want to eliminate bufferbloat to improve ...
0
votes
0answers
116 views

How do I check network buffer queue size?

I'm currently trying to investigate how queue size varies affect throughput in network. Hence, I've tried googling around but to no avail. Hopefully someone here could shed some light on me. How do ...