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RAM is not being utilized

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Operating Systems Linux RAM is not being utilized
# 1  
Old 01-26-2009
RAM is not being utilized
Hi All,

I installed CentOs on my PC (it has 1 GB of RAM). I see that only 200MB of RAM is being utilized on average but its very slow. Please let me know how do I improve the performance. Is there a way to set the RAM utilization/usage on CentOS.

Thank you
# 2  
Old 01-26-2009
Take a look at:

/proc/sys/vm

Quote:
root@www:/proc/sys/vm# ls
block_dump laptop_mode nr_hugepages panic_on_oom
dirty_background_ratio legacy_va_layout nr_overcommit_hugepages percpu_pagelist_fraction
dirty_expire_centisecs lowmem_reserve_ratio nr_pdflush_threads stat_interval
dirty_ratio max_map_count numa_zonelist_order swappiness
dirty_writeback_centisecs min_free_kbytes oom_kill_allocating_task vfs_cache_pressure
drop_caches min_slab_ratio overcommit_memory zone_reclaim_mode
hugepages_treat_as_movable min_unmapped_ratio overcommit_ratio
hugetlb_shm_group mmap_min_addr page-cluster
Maybe you can check around on the net and see if you can tune thse parameters to help you?
# 3  
Old 01-26-2009
Quote:
Originally Posted by jayfriend
Hi All,

I installed CentOs on my PC (it has 1 GB of RAM). I see that only 200MB of RAM is being utilized on average but its very slow. Please let me know how do I improve the performance. Is there a way to set the RAM utilization/usage on CentOS.

Thank you
What do you mean "only 200 MB is being utiltized"? How are you determining that?
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