此 MySQL 服务器已经运行了 0 天 9 小时，32 分 26 秒，启动时间为 2006 年 07 月 04 日 07:18。
Handler Query cache Threads 二进制日志 Temporary data Delayed inserts Key cache Joins Replication Sorting 个表
服务器流量：这些表显示了此 MySQL 服务器自启动以来的网络流量统计。
流量 ø 每小时
已收到 8 MB 843 KB
送出 27 MB 3 MB
统计 34 MB 4 MB
连接 ø 每小时 %
max. concurrent connections 351 --- ---
尝试失败 2 0.21 0.02%
中止 0 0.00 0.00%
统计 8,114 850.47 100.00%
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查询统计：自从启动后，服务器共收到了 57,736 次查询。
统计 ø 每小时 ø 每分钟 ø 每秒
58 k 6.05 k 100.86 1.68
查询方式 ø 每小时 %
admin commands 0 0.00 0.00%
alter db 0 0.00 0.00%
alter table 0 0.00 0.00%
analyze 0 0.00 0.00%
backup table 0 0.00 0.00%
begin 0 0.00 0.00%
change db 8 k 849.85 16.34%
change master 0 0.00 0.00%
check 0 0.00 0.00%
checksum 0 0.00 0.00%
commit 0 0.00 0.00%
create db 0 0.00 0.00%
create function 0 0.00 0.00%
create index 0 0.00 0.00%
create table 0 0.00 0.00%
delete 468 49.05 0.94%
delete multi 0 0.00 0.00%
do 0 0.00 0.00%
drop db 0 0.00 0.00%
drop function 0 0.00 0.00%
drop index 0 0.00 0.00%
drop table 0 0.00 0.00%
drop user 0 0.00 0.00%
flush 0 0.00 0.00%
grant 0 0.00 0.00%
ha close 0 0.00 0.00%
ha open 0 0.00 0.00%
ha read 0 0.00 0.00%
help 0 0.00 0.00%
insert 11 k 1.17 k 22.51%
insert select 0 0.00 0.00%
kill 0 0.00 0.00%
load 0 0.00 0.00%
load master data 0 0.00 0.00%
load master table 0 0.00 0.00%
lock tables 0 0.00 0.00%
optimize 0 0.00 0.00%
preload keys 0 0.00 0.00%
purge 0 0.00 0.00%
purge before date 0 0.00 0.00%
rename table 0 0.00 0.00%
repair 0 0.00 0.00%
replace 16 1.68 0.03%
replace select 0 0.00 0.00%
reset 0 0.00 0.00%
查询方式 ø 每小时 %
restore table 0 0.00 0.00%
revoke 0 0.00 0.00%
revoke all 0 0.00 0.00%
rollback 0 0.00 0.00%
savepoint 0 0.00 0.00%
select 11 k 1.15 k 22.11%
set option 16 1.68 0.03%
show binlog events 0 0.00 0.00%
show binlogs 2 0.21 0.00%
show charsets 4 0.42 0.01%
show collations 4 0.42 0.01%
show column types 0 0.00 0.00%
show create db 0 0.00 0.00%
show create table 0 0.00 0.00%
show databases 1 0.10 0.00%
show errors 0 0.00 0.00%
show fields 0 0.00 0.00%
show grants 1 0.10 0.00%
show innodb status 0 0.00 0.00%
show keys 0 0.00 0.00%
show logs 0 0.00 0.00%
show master status 0 0.00 0.00%
show ndb status 0 0.00 0.00%
show new master 0 0.00 0.00%
show open tables 0 0.00 0.00%
show privileges 0 0.00 0.00%
show processlist 0 0.00 0.00%
show slave hosts 0 0.00 0.00%
show slave status 0 0.00 0.00%
show status 1 0.10 0.00%
show storage engines 0 0.00 0.00%
show tables 7 0.73 0.01%
show variables 8 0.84 0.02%
show warnings 0 0.00 0.00%
slave start 0 0.00 0.00%
slave stop 0 0.00 0.00%
stmt close 0 0.00 0.00%
stmt execute 0 0.00 0.00%
stmt prepare 0 0.00 0.00%
stmt reset 0 0.00 0.00%
stmt send long data 0 0.00 0.00%
truncate 0 0.00 0.00%
unlock tables 0 0.00 0.00%
update 2 k 233.63 4.49%
update multi 0 0.00 0.00%
开始 变量 值 描述
Flush_commands 1 The number of executed FLUSH statements.
Slow_queries 1 The number of queries that have taken more than long_query_time seconds. MySQL - 文档
开始 Handler 变量 值 描述
Handler_commit 0 The number of internal COMMIT statements.
Handler_delete 11 k The number of times a row was deleted from a table.
Handler_discover 0 The MySQL server can ask the NDB Cluster storage engine if it knows about a table with a given name. This is called discovery. Handler_discover indicates the number of time tables have been discovered.
Handler_read_first 214 The number of times the first entry was read from an index. If this is high, it suggests that the server is doing a lot of full index scans; for example, SELECT col1 FROM foo, assuming that col1 is indexed.
Handler_read_key 22 M The number of requests to read a row based on a key. If this is high, it is a good indication that your queries and tables are properly indexed.
Handler_read_next 22 M The number of requests to read the next row in key order. This is incremented if you are querying an index column with a range constraint or if you are doing an index scan.
Handler_read_prev 5 k The number of requests to read the previous row in key order. This read method is mainly used to optimize ORDER BY ... DESC.
Handler_read_rnd 8 k The number of requests to read a row based on a fixed position. This is high if you are doing a lot of queries that require sorting of the result. You probably have a lot of queries that require MySQL to scan whole tables or you have joins that don't use keys properly.
Handler_read_rnd_next 50 M The number of requests to read the next row in the data file. This is high if you are doing a lot of table scans. Generally this suggests that your tables are not properly indexed or that your queries are not written to take advantage of the indexes you have.
Handler_rollback 0 The number of internal ROLLBACK statements.
Handler_update 20 M The number of requests to update a row in a table.
Handler_write 32 k The number of requests to insert a row in a table.
开始 Query cache 变量 值 描述
Flush query cache MySQL - 文档
Qcache_free_blocks 12 The number of free memory blocks in query cache.
Qcache_free_memory 98 M The amount of free memory for query cache.
Qcache_hits 17 k The number of cache hits.
Qcache_inserts 11 k The number of queries added to the cache.
Qcache_lowmem_prunes 0 The number of queries that have been removed from the cache to free up memory for caching new queries. This information can help you tune the query cache size. The query cache uses a least recently used (LRU) strategy to decide which queries to remove from the cache.
Qcache_not_cached 346 The number of non-cached queries (not cachable, or not cached due to the query_cache_type setting).
Qcache_queries_in_cache 998 The number of queries registered in the cache.
Qcache_total_blocks 2 k The total number of blocks in the query cache.
开始 Threads 变量 值 描述
显示进程 MySQL - 文档
Slow_launch_threads 2 The number of threads that have taken more than slow_launch_time seconds to create.
Threads_cached 4 The number of threads in the thread cache. The cache hit rate can be calculated as Threads_created/Connections. If this value is red you should raise your thread_cache_size.
Threads_connected 1 The number of currently open connections.
Threads_created 5 The number of threads created to handle connections. If Threads_created is big, you may want to increase the thread_cache_size value. (Normally this doesn't give a notable performance improvement if you have a good thread implementation.)
Threads_running 1 The number of threads that are not sleeping.
Threads_cache_hitrate_% 99.94 %
开始 二进制日志 变量 值 描述
MySQL - 文档
Binlog_cache_disk_use 0 The number of transactions that used the temporary binary log cache but that exceeded the value of binlog_cache_size and used a temporary file to store statements from the transaction.
Binlog_cache_use 0 The number of transactions that used the temporary binary log cache.
开始 Temporary data 变量 值 描述
Created_tmp_disk_tables 0 The number of temporary tables on disk created automatically by the server while executing statements. If Created_tmp_disk_tables is big, you may want to increase the tmp_table_size value to cause temporary tables to be memory-based instead of disk-based.
Created_tmp_files 838 How many temporary files mysqld has created.
Created_tmp_tables 1 k The number of in-memory temporary tables created automatically by the server while executing statements.
开始 Delayed inserts 变量 值 描述
Delayed_errors 0 The number of rows written with INSERT DELAYED for which some error occurred (probably duplicate key).
Delayed_insert_threads 0 The number of INSERT DELAYED handler threads in use. Every different table on which one uses INSERT DELAYED gets its own thread.
Delayed_writes 0 The number of INSERT DELAYED rows written.
Not_flushed_delayed_rows 0 The number of rows waiting to be written in INSERT DELAY queues.
开始 Key cache 变量 值 描述
MySQL - 文档
Key_blocks_not_flushed 0 The number of key blocks in the key cache that have changed but haven't yet been flushed to disk. It used to be known as Not_flushed_key_blocks.
Key_blocks_unused 115 k The number of unused blocks in the key cache. You can use this value to determine how much of the key cache is in use.
Key_blocks_used 2 k The number of used blocks in the key cache. This value is a high-water mark that indicates the maximum number of blocks that have ever been in use at one time.
Key_read_requests 5 M The number of requests to read a key block from the cache.
Key_reads 8 k The number of physical reads of a key block from disk. If Key_reads is big, then your key_buffer_size value is probably too small. The cache miss rate can be calculated as Key_reads/Key_read_requests.
Key_write_requests 4 k The number of requests to write a key block to the cache.
Key_writes 3 k The number of physical writes of a key block to disk.
Key_buffer_fraction_% 12.44 %
开始 Joins 变量 值 描述
Select_full_join 0 The number of joins that do not use indexes. If this value is not 0, you should carefully check the indexes of your tables.
Select_full_range_join 0 The number of joins that used a range search on a reference table.
Select_range 1 k The number of joins that used ranges on the first table. (It's normally not critical even if this is big.)
Select_range_check 0 The number of joins without keys that check for key usage after each row. (If this is not 0, you should carefully check the indexes of your tables.)
Select_scan 764 The number of joins that did a full scan of the first table.
开始 Replication 变量 值 描述
Show slave hosts Show slave status MySQL - 文档
Rpl_status NULL The status of failsafe replication (not yet implemented).
Slave_open_temp_tables 0 The number of temporary tables currently open by the slave SQL thread.
Slave_retried_transactions 0 Total (since startup) number of times the replication slave SQL thread has retried transactions.
Slave_running OFF This is ON if this server is a slave that is connected to a master.
开始 Sorting 变量 值 描述
Sort_merge_passes 419 The number of merge passes the sort algorithm has had to do. If this value is large, you should consider increasing the value of the sort_buffer_size system variable.
Sort_range 152 The number of sorts that were done with ranges.
Sort_rows 36 M The number of sorted rows.
Sort_scan 2 k The number of sorts that were done by scanning the table.
开始 个表 变量 值 描述
Flush (close) all tables Show open tables
Open_tables 7 The number of tables that are open.
Opened_tables 314 The number of tables that have been opened. If opened tables is big, your table cache value is probably too small.
Table_locks_immediate 43 k The number of times that a table lock was acquired immediately.
Table_locks_waited 65 The number of times that a table lock could not be acquired immediately and a wait was needed. If this is high, and you have performance problems, you should first optimize your queries, and then either split your table or tables or use replication.
开始 变量 值 描述
Open_files 12 The number of files that are open.
Open_streams 0 The number of streams that are open (used mainly for logging).
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请各位帮忙看看,是否状态良好呢????
[ 本帖最后由 c++builder 于 2006-7-4 16:56 编辑 ] |
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