01-06-2010
Determining cause behind high load average
How to determine what is causing high load average in a system?
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Hi,
I am seeing very high kernel usage and very high load averages on my system (Although we are not loading much data to our database). Here is the output of top...does anyone know what i should be looking at?
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Hi all, hope you can help me. I'm getting high load average and can't find a reason for this, please share your inputs.
load average: 7.78, 7.50, 7.31
Tasks: 330 total, 1 running, 329 sleeping, 0 stopped, 0 zombie
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TOP:
top - 17:09:39 up 47 days, 1:34, 13 users, load average: 6.54, 10.96, 11.27
Tasks: 274 total, 3 running, 271 sleeping, 0 stopped, 0 zombie
Cpu0 : 6.0%us, 44.9%sy, 0.0%ni, 48.8%id, 0.0%wa, 0.0%hi, 0.3%si, 0.0%st
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LEARN ABOUT CENTOS
lh_node_usage_stats_bio
lh_stats(3) OpenSSL lh_stats(3)
NAME
lh_stats, lh_node_stats, lh_node_usage_stats, lh_stats_bio, lh_node_stats_bio, lh_node_usage_stats_bio - LHASH statistics
SYNOPSIS
#include <openssl/lhash.h>
void lh_stats(LHASH *table, FILE *out);
void lh_node_stats(LHASH *table, FILE *out);
void lh_node_usage_stats(LHASH *table, FILE *out);
void lh_stats_bio(LHASH *table, BIO *out);
void lh_node_stats_bio(LHASH *table, BIO *out);
void lh_node_usage_stats_bio(LHASH *table, BIO *out);
DESCRIPTION
The LHASH structure records statistics about most aspects of accessing the hash table. This is mostly a legacy of Eric Young writing this
library for the reasons of implementing what looked like a nice algorithm rather than for a particular software product.
lh_stats() prints out statistics on the size of the hash table, how many entries are in it, and the number and result of calls to the
routines in this library.
lh_node_stats() prints the number of entries for each 'bucket' in the hash table.
lh_node_usage_stats() prints out a short summary of the state of the hash table. It prints the 'load' and the 'actual load'. The load is
the average number of data items per 'bucket' in the hash table. The 'actual load' is the average number of items per 'bucket', but only
for buckets which contain entries. So the 'actual load' is the average number of searches that will need to find an item in the hash
table, while the 'load' is the average number that will be done to record a miss.
lh_stats_bio(), lh_node_stats_bio() and lh_node_usage_stats_bio() are the same as the above, except that the output goes to a BIO.
RETURN VALUES
These functions do not return values.
SEE ALSO
bio(3), lhash(3)
HISTORY
These functions are available in all versions of SSLeay and OpenSSL.
This manpage is derived from the SSLeay documentation.
1.0.1e 2013-02-11 lh_stats(3)