Benchmark Results - HP 5992-4755 Sizing Manual

Table 6 MySQL Test Configuration (continued)
mysqld Option
join_buffer_size
thread_cache_size
thread_stack
query_cache_size
ft_min_word_len
tmp_table_size
innodb_data_file_path
innodb_buffer_pool_size
innodb_additional_mem_pool_size
innodb_log_file_size
innodb_flush_log_at_trx_commit
innodb_locks_unsafe_for_binlog
innodb_thread_concurrency
innodb_concurrency_tickets
Innodb_log_buffer_size
innodb_table_locks
innodb_support_xa
innodb_doublewrite
innodb_checksums

Benchmark Results

For each read-only or read/write test, SysBench was run with a varying number of thread
connections to determine the maximum transactions per second (tps). The tests were conducted
on both the internal storage with the battery backed write cache option (BBWC) and the Fibre
Channel attached Storage Area Network.
Value Description
1M Buffer size for joins that do not use indices and require a
full table scan.
16 Number of server threads to cache for reuse.
192K Per-thread stack size. The default is 192K.
0 Amount of memory allocated for caching query results. The
value "0" disables query cache.
4 Minimum length of the word to be included in a full-text
index.
64M Maximum size of in-memory temp tables. Increase for
GROUP BY.
ibdata1:100M\ Path to innodb data files and sizes. Increase size from 10MB
:autoextend to 100MB.
1900M Number of bytes of the memory buffer to cache data and
indices.
20M Number of bytes of memory pool used to store the data
dictionary information and data structures. The default is
1M.
900M Size of each log file in log group. The default is 5MB.
2 Determines how the log buffer is written to the disk. The
value "2" means data is flushed on every commit, but no
disk flush occurs. The default is 1.
1 Controls next-key locking in search and index scans. The
default is 0 (disabled).
1000 Number of threads currently inside the innodb engine. The
default varies with the MySQL version.
500 Number of 'free tickets' to allow re-entry into the innodb
engine.
8M The size of buffer InnoDB used in the memory to write the
log files. Ranges from 1MB to 8MB. Large log buffer saves
disk I/O operations.
0 Specifies whether InnoDB locks a table internally. The
default is 1 (enabled).
0 Specifies whether InnoDB supports XA transactions. The
default is 1 (supported).
skip-innodb-doublewrite InnoDB stores all data twice by default. Disable it by using
the --skip-innodb-doublewrite parameter when starting the
MySQL server.
skip-innodb-checksums Checksum validation is used on all data pages by default.
Disable it by using the --skip-innodb-checksums parameter
when starting the MySQL server.
Benchmark Results 15