The main parameter for tweaking Apache’s memory usage will be MaxClients. Too low a value and you will run out of available slots to serve client requests. Too many and you will use up all your RAM and begin to use swap space which will kill performance (it may appear to be a server crash). … Read more
Solved with the following: cat <<EOF > /etc/profile.d/ImageMagick.sh # Set ImageMagick memory limits: it eats too much export MAGICK_MEMORY_LIMIT=1024 # Use up to *MB of memory before doing mmap export MAGICK_MAP_LIMIT=1024 # Use up to *MB mmaps before caching to disk export MAGICK_AREA_LIMIT=4096 # Use up to *MB disk space before failure export MAGICK_FILES_LIMIT=1024 # … Read more
Not really any way to easily tell because it is entirely dependent on your usage and the application. You’re maxing out a database server…how big is the database? What are your transaction stats? The real-world limitations are obvious in your scenario. You’re running for awhile on 6 gig without problem, then it’s swapping and thrashing.Thus … Read more
The VM is configure to use 10GB of RAM, I have 16GB, it should start but it doesn’t. Not enough info. The host has 16GB RAM, of which only 4.8GB is in use. This leaves at least 11GB available for Hyper-V to use. Except it can’t. Too little. I love to add 1gb per vm … Read more
Since nobody else had an answer here, thought I’d share the only thing that has worked for us. First, these ideas did not work: larger cache instance type: was having the same problem on smaller instances than the cache.r3.2xlarge we’re using now tweaking maxmemory-policy: neither volatile-lru nor allkeys-lru seemed to make any difference bumping up … Read more
OBJS ACTIVE USE OBJ SIZE SLABS OBJ/SLAB CACHE SIZE NAME 146851887 146851887 12% 0.19K 6992947 21 27971788K dentry You say it’s not because of disk caching, but clearly it is. My bet is that you have code that makes lots of fetches for files that do not exist and you get a ton of negative … Read more
Your smem -tw output shows that your kernel is consuming over 9 GB of dynamic memory: danslimmon@bad-server:~$ smem -tw Area Used Cache Noncache firmware/hardware 0 0 0 kernel image 0 0 0 kernel dynamic memory 12857576 2887440 9970136 userspace memory 17661400 1272468 16388932 free memory 351592 351592 0 ———————————————————- 30870568 4511500 26359068 So, some kernel … Read more
Running top in batch mode to report memory sizes periodically can be used to see who is using the memory when things go south. Runing sar in batch mode should give some good diagnostics on memory use, and related I/O. Running munin to monitor the system should give you a graph with good detail on … Read more
Generally, I’m opposed to the idea that a Windows server should be rebooted on a regular schedule EXCEPT in relation to TS/RDS servers. We reboot ours every day. It clears up old sessions, releases in use resources (CPU, RAM, file handles, etc.), so my opinion and suggestion would be that you do configure a daily … Read more
Is this a 64bit server – do you have the lock pages in memory local policy enabled? SQL is likely consuming the rest of your memory If you look at the perfmon counters you will see the memory allocation Here is an article that explains it in depth You can also view the counters in … Read more