Warning: Division by Zero

If you're referring to the mysqltuner output, i've included that below. If it's something else let me know what you need. This is a fantastic module. Can't believe I just stumbled upon it. I was browsing on whether I should convert to Innodb and this popped up. If I do convert, going to be much, much easier. Thanks for another great addition.

Queries

Uptime in seconds: 37666
Uptime is less than 1 day, performance tuning may not be accurate
    (Uptime <86400)
    (37666 37666<86400)
Uptime: 10h 27m 46s
Questions: 374128
% slow queries: 0
slow query rate: 0 per day
Long query time: 10
long_query_time is set to 10 seconds or more. This may not be appropriate for your environment.
    (long_query_time >=10)
    (10 10>=10)
Slow query logging: OFF
Enable the slow query log to troubleshoot bad queries.
    ("log_slow_queries" eq 'OFF')
    ("OFF" OFF=== 'OFF')
% reads: 56.1330501389
% writes: 43.8669498611
qps: 9.93277757128
reads per sec: 1.28760567408 per day
writes per sec: 1.00624023469 per day
Queries: 9.93277757128 per second
Connections: 3 Thousand
Bytes sent: 2 Billion
Bytes received: 131 Million


versions

Supported Version: 5
Release Series: 5.0
version less then 5.1, upgrade!
    (substr("version",0,3) ne "5.1")
    (substr("5.0.91-community",0,3) '5.0' !== "5.1")
Minor Version: 91
Distribution: MySQL Community Edition (GPL)
Distribution: MySQL Community Edition (GPL)

MySQL Architecture: x86_64


Query cache

Query cache efficiency (%): 81.542239189
% query cache used: 33.6587587992
The query cache is not being fully utilized.
    (Qcache_free_memory / query_cache_size * 100 <80)
    (16941008 / 50331648 * 100 33.6587587992<80)
Query cache low memory prunes: 0 per day
Query cache size: 48.0 Mb
Query cache min result size: 1.0 Mb
The max size of the result set in the query cache is the default of 1 Mb. Changing this (usually by increasing) may increase efficiency.
    (&hr_bytes(query_cache_limit) eq "1.0 Mb")
    (dbtuner_hr_bytes(1048576) '1.0 Mb' === "1.0 Mb")


Sorts

Total sorts: 8622
% sorts that cause temporary tables: 0
rate of sorts that cause temporary tables: 0 per day
sort_buffer_size: 2.0 Mb
read_rnd_buffer_size: 256.0 Kb
Sort rows: 0 per day

Joins,scans

rate of joins without indexes: 0 per day
rate of reading first index entry: 0 per day
rate of reading fixed position: 0 per day
rate of reading next table row: 0 per day

temp tables

tmp_table_size-max_heap_table_size: 0
tmp_table_size: 40.0 Mb
max_heap_table_size: 40.0 Mb
% temp disk tables: 28.664580073
Too many temporary tables are being written to disk. Increase max_heap_table_size and tmp_table_size.
    (Created_tmp_disk_tables / (Created_tmp_tables + Created_tmp_disk_tables) * 100 >25)
    (2198 / (5470 + 2198) * 100 28.664580073>25)
temp disk rate: 0 per day
temp table rate: 0 per day


MyISAM index cache

MyISAM key buffer size: 32.0 Mb
max % MyISAM key buffer ever used: 12.6800537109
MyISAM key buffer (index cache) % used is low. You may need to decrease the size of key_buffer_size, re-examine your tables to see if indexes have been removed, or examine queries and expectations about what indexes are being used.
    ((Key_blocks_used)*key_cache_block_size/key_buffer_size * 100 <95)
    ((4155)*1024/33554432 * 100 12.6800537109<95)
% MyISAM key buffer used: 29.4830322266
MyISAM key buffer (index cache) % used is low. You may need to decrease the size of key_buffer_size, re-examine your tables to see if indexes have been removed, or examine queries and expectations about what indexes are being used.
    ((1-Key_blocks_unused*key_cache_block_size/key_buffer_size) * 100 <95)
    ((1-23107*1024/33554432) * 100 29.4830322266<95)
% index reads from memory: 99.1709983552


other caches

table open cache size (5.1+): table_open_cache
Size of the table cache
    (table_open_cache >-1)
    (table_open_cache table_open_cache>-1)
rate of table open: 0 per day
% open files: 28.3333333333
rate of open files: 0 per day
Immediate table locks %: 99.8100239792
Table lock wait rate: 0 per day
thread cache: 4
Total threads created: 149
thread cache hit rate %: 0.0394597457627
Threads that are slow to launch: 0
Slow launch time: 2


Connections

% connections used: 34
Max connections used: 17
Max connections limit: 50
% aborted connections: 14.4862288136
Too many connections are aborted, meaning they cannot be authorized.
    (Aborted_connects/Connections * 100 >5)
    (547/3776 * 100 14.4862288136>5)
rate of aborted connections: 0 per day
% aborted clients: 0.238347457627
rate of aborted clients: 0 per day


InnoDB

Is InnoDB enabled?: DISABLED
You do not have InnoDB enabled
    ("have_innodb" ne "YES")
    ("DISABLED" DISABLED!== "YES")
% innoDB log size: 62.5
InnoDB log file size is not an appropriate size, in relation to the InnoDB buffer pool. Consider changing either\ninnodb_log_file_size or innodb_buffer_pool_size
    (innodb_log_file_size / innodb_buffer_pool_size * 100 >=0)
    (5242880 / 8388608 * 100 62.5>=0)


other

MyISAM concurrent inserts: 1

INSERT DELAYED USAGE


Delayed_errors 0


Delayed_insert_threads 0


Delayed_writes 0


Not_flushed_delayed_rows