redis状态监控与性能调优

本文主要介绍及演示一些Redis相关的状态监控和性能调优的命令及使用方法：

1、redis-benchmark

redis基准信息，redis服务器性能检测

例如：

检测redis服务器性能，本机6379端口的实例，100个并发连接，100000个请求

redis-benchmark -h localhost -p  -c  -n  

[root@redis-server ~]# redis-benchmark -h localhost -p  -c  -n
====== PING_INLINE ======
   requests completed in 1.29 seconds
   parallel clients
   bytes payload
  keep alive: 

81.97% <=  milliseconds
97.69% <=  milliseconds
99.79% <=  milliseconds
99.94% <=  milliseconds
99.97% <=  milliseconds
100.00% <=  milliseconds
77639.75 requests per second

====== PING_BULK ======
   requests completed in 1.49 seconds
   parallel clients
   bytes payload
  keep alive: 

73.04% <=  milliseconds
97.46% <=  milliseconds
99.62% <=  milliseconds
99.97% <=  milliseconds
100.00% <=  milliseconds
100.00% <=  milliseconds
67204.30 requests per second

====== SET ======
   requests completed in 1.30 seconds
   parallel clients
   bytes payload
  keep alive: 

81.09% <=  milliseconds
97.16% <=  milliseconds
99.43% <=  milliseconds
99.75% <=  milliseconds
99.80% <=  milliseconds
99.82% <=  milliseconds
99.83% <=  milliseconds
99.85% <=  milliseconds
99.87% <=  milliseconds
99.89% <=  milliseconds
99.89% <=  milliseconds
99.90% <=  milliseconds
99.90% <=  milliseconds
99.90% <=  milliseconds
99.91% <=  milliseconds
99.93% <=  milliseconds
99.94% <=  milliseconds
99.95% <=  milliseconds
99.96% <=  milliseconds
99.98% <=  milliseconds
99.99% <=  milliseconds
100.00% <=  milliseconds
100.00% <=  milliseconds
76687.12 requests per second

====== GET ======
   requests completed in 1.91 seconds
   parallel clients
   bytes payload
  keep alive: 

49.74% <=  milliseconds
93.92% <=  milliseconds
99.37% <=  milliseconds
99.95% <=  milliseconds
99.97% <=  milliseconds
99.98% <=  milliseconds
100.00% <=  milliseconds
52273.91 requests per second

====== INCR ======
   requests completed in 1.60 seconds
   parallel clients
   bytes payload
  keep alive: 

66.32% <=  milliseconds
96.55% <=  milliseconds
99.61% <=  milliseconds
99.96% <=  milliseconds
100.00% <=  milliseconds
62344.14 requests per second

====== LPUSH ======
   requests completed in 1.27 seconds
   parallel clients
   bytes payload
  keep alive: 

73.84% <=  milliseconds
95.61% <=  milliseconds
99.36% <=  milliseconds
99.96% <=  milliseconds
99.99% <=  milliseconds
100.00% <=  milliseconds
78492.93 requests per second

====== RPUSH ======
   requests completed in 1.31 seconds
   parallel clients
   bytes payload
  keep alive: 

80.47% <=  milliseconds
96.93% <=  milliseconds
99.56% <=  milliseconds
99.98% <=  milliseconds
100.00% <=  milliseconds
100.00% <=  milliseconds
76103.50 requests per second

====== LPOP ======
   requests completed in 1.30 seconds
   parallel clients
   bytes payload
  keep alive: 

74.91% <=  milliseconds
95.50% <=  milliseconds
99.29% <=  milliseconds
99.95% <=  milliseconds
100.00% <=  milliseconds
100.00% <=  milliseconds
77101.00 requests per second

====== RPOP ======
   requests completed in 1.40 seconds
   parallel clients
   bytes payload
  keep alive: 

77.99% <=  milliseconds
97.07% <=  milliseconds
99.61% <=  milliseconds
99.97% <=  milliseconds
99.98% <=  milliseconds
100.00% <=  milliseconds
100.00% <=  milliseconds
71377.59 requests per second

====== SADD ======
   requests completed in 1.32 seconds
   parallel clients
   bytes payload
  keep alive: 

80.83% <=  milliseconds
97.14% <=  milliseconds
99.57% <=  milliseconds
99.95% <=  milliseconds
100.00% <=  milliseconds
100.00% <=  milliseconds
75757.57 requests per second

====== HSET ======
   requests completed in 1.30 seconds
   parallel clients
   bytes payload
  keep alive: 

80.25% <=  milliseconds
96.83% <=  milliseconds
99.49% <=  milliseconds
99.97% <=  milliseconds
100.00% <=  milliseconds
76923.08 requests per second

====== SPOP ======
   requests completed in 1.48 seconds
   parallel clients
   bytes payload
  keep alive: 

73.97% <=  milliseconds
96.91% <=  milliseconds
99.55% <=  milliseconds
99.96% <=  milliseconds
100.00% <=  milliseconds
100.00% <=  milliseconds
67567.57 requests per second

====== LPUSH (needed to benchmark LRANGE) ======
   requests completed in 1.35 seconds
   parallel clients
   bytes payload
  keep alive: 

71.03% <=  milliseconds
95.36% <=  milliseconds
99.29% <=  milliseconds
99.97% <=  milliseconds
100.00% <=  milliseconds
100.00% <=  milliseconds
73909.83 requests per second

====== LRANGE_100 (first  elements) ======
   requests completed in 2.91 seconds
   parallel clients
   bytes payload
  keep alive: 

14.30% <=  milliseconds
80.30% <=  milliseconds
94.42% <=  milliseconds
96.88% <=  milliseconds
98.34% <=  milliseconds
99.39% <=  milliseconds
99.78% <=  milliseconds
99.93% <=  milliseconds
99.97% <=  milliseconds
99.98% <=  milliseconds
100.00% <=  milliseconds
100.00% <=  milliseconds
34317.09 requests per second

====== LRANGE_300 (first  elements) ======
   requests completed in 5.88 seconds
   parallel clients
   bytes payload
  keep alive: 

0.00% <=  milliseconds
85.83% <=  milliseconds
94.17% <=  milliseconds
96.10% <=  milliseconds
97.90% <=  milliseconds
98.68% <=  milliseconds
98.70% <=  milliseconds
99.30% <=  milliseconds
99.49% <=  milliseconds
99.76% <=  milliseconds
99.79% <=  milliseconds
99.83% <=  milliseconds
99.85% <=  milliseconds
99.87% <=  milliseconds
99.89% <=  milliseconds
99.91% <=  milliseconds
99.92% <=  milliseconds
99.93% <=  milliseconds
99.94% <=  milliseconds
99.95% <=  milliseconds
99.96% <=  milliseconds
99.97% <=  milliseconds
99.99% <=  milliseconds
99.99% <=  milliseconds
100.00% <=  milliseconds
17006.80 requests per second

====== LRANGE_500 (first  elements) ======
   requests completed in 8.16 seconds
   parallel clients
   bytes payload
  keep alive: 

0.00% <=  milliseconds
0.01% <=  milliseconds
80.98% <=  milliseconds
90.89% <=  milliseconds
95.60% <=  milliseconds
97.20% <=  milliseconds
98.23% <=  milliseconds
98.53% <=  milliseconds
99.06% <=  milliseconds
99.09% <=  milliseconds
99.46% <=  milliseconds
99.53% <=  milliseconds
99.65% <=  milliseconds
99.75% <=  milliseconds
99.79% <=  milliseconds
99.81% <=  milliseconds
99.82% <=  milliseconds
99.84% <=  milliseconds
99.85% <=  milliseconds
99.86% <=  milliseconds
99.87% <=  milliseconds
99.88% <=  milliseconds
99.89% <=  milliseconds
99.90% <=  milliseconds
99.91% <=  milliseconds
99.93% <=  milliseconds
99.93% <=  milliseconds
99.94% <=  milliseconds
99.95% <=  milliseconds
99.96% <=  milliseconds
99.98% <=  milliseconds
99.98% <=  milliseconds
99.99% <=  milliseconds
99.99% <=  milliseconds
100.00% <=  milliseconds
100.00% <=  milliseconds
12260.91 requests per second

====== LRANGE_600 (first  elements) ======
   requests completed in 10.15 seconds
   parallel clients
   bytes payload
  keep alive: 

0.00% <=  milliseconds
0.01% <=  milliseconds
84.84% <=  milliseconds
93.41% <=  milliseconds
96.43% <=  milliseconds
97.71% <=  milliseconds
97.75% <=  milliseconds
98.32% <=  milliseconds
98.79% <=  milliseconds
99.19% <=  milliseconds
99.22% <=  milliseconds
99.25% <=  milliseconds
99.48% <=  milliseconds
99.56% <=  milliseconds
99.60% <=  milliseconds
99.68% <=  milliseconds
99.74% <=  milliseconds
99.77% <=  milliseconds
99.79% <=  milliseconds
99.82% <=  milliseconds
99.83% <=  milliseconds
99.85% <=  milliseconds
99.86% <=  milliseconds
99.86% <=  milliseconds
99.87% <=  milliseconds
99.88% <=  milliseconds
99.89% <=  milliseconds
99.90% <=  milliseconds
99.90% <=  milliseconds
99.91% <=  milliseconds
99.91% <=  milliseconds
99.92% <=  milliseconds
99.94% <=  milliseconds
99.95% <=  milliseconds
99.95% <=  milliseconds
99.96% <=  milliseconds
99.96% <=  milliseconds
99.96% <=  milliseconds
99.97% <=  milliseconds
99.98% <=  milliseconds
99.98% <=  milliseconds
99.99% <=  milliseconds
99.99% <=  milliseconds
99.99% <=  milliseconds
100.00% <=  milliseconds
100.00% <=  milliseconds
9851.25 requests per second

====== MSET ( keys) ======
   requests completed in 1.89 seconds
   parallel clients
   bytes payload
  keep alive: 

0.00% <=  milliseconds
75.00% <=  milliseconds
89.85% <=  milliseconds
95.38% <=  milliseconds
98.52% <=  milliseconds
99.34% <=  milliseconds
99.60% <=  milliseconds
99.83% <=  milliseconds
99.98% <=  milliseconds
100.00% <=  milliseconds
52994.17 requests per second

[root@redis-server ~]# 

2、redis-cli

例1：监控本机6379端口的实例的数据操作，redis的连接及读写操作

redis-cli -h localhost -p  monitor 

先开启一个终端1，用于redis监控

[root@redis-server ~]# redis-cli -h localhost -p  monitor
OK
1504689350.635365 [ 127.0.0.1:] "COMMAND"
1504689361.944610 [ 127.0.0.1:] "set" "a" ""
1504689369.782029 [ 127.0.0.1:] "get" "a"

然后在开启一个redis终端2进行操作

[root@redis-server ~]# redis-cli -p
127.0.0.1:> set a
OK
127.0.0.1:> get a
""
127.0.0.1:> 

可以看到终端2上面进行的数据操作会在终端1上面被记录下来

例2：查询本机redis实例的信息，端口6379

redis-cli -h localhost -p  info 

备注：该命令也可以在redis终端里面进行查询

[root@redis-server ~]# redis-cli -h localhost -p  info
# Server
redis_version:3.2.
redis_git_sha1:
redis_git_dirty:
redis_build_id:eae5a0b8746eb6ce
redis_mode:standalone
os:Linux 2.6.-.el6.x86_64 x86_64
arch_bits:
multiplexing_api:epoll
gcc_version:4.4.
process_id:
run_id:0057d03b2e908ee036c2aa1c3531e8aa051d7468
tcp_port:
uptime_in_seconds:
uptime_in_days:
hz:
lru_clock:
executable:/usr/local/redis/bin/redis-server
config_file:/usr/local/redis/conf/redis.conf

# Clients
connected_clients:
client_longest_output_list:
client_biggest_input_buf:
blocked_clients:

# Memory
used_memory:
used_memory_human:1.74M
used_memory_rss:
used_memory_rss_human:3.86M
used_memory_peak:
used_memory_peak_human:8.05M
total_system_memory:
total_system_memory_human:.83G
used_memory_lua:
used_memory_lua_human:.00K
maxmemory:
maxmemory_human:0B
maxmemory_policy:noeviction
mem_fragmentation_ratio:2.22
mem_allocator:jemalloc-4.0.

# Persistence
loading:
rdb_changes_since_last_save:
rdb_bgsave_in_progress:
rdb_last_save_time:
rdb_last_bgsave_status:ok
rdb_last_bgsave_time_sec:
rdb_current_bgsave_time_sec:-
aof_enabled:
aof_rewrite_in_progress:
aof_rewrite_scheduled:
aof_last_rewrite_time_sec:-
aof_current_rewrite_time_sec:-
aof_last_bgrewrite_status:ok
aof_last_write_status:ok

# Stats
total_connections_received:
total_commands_processed:
instantaneous_ops_per_sec:
total_net_input_bytes:
total_net_output_bytes:
instantaneous_input_kbps:0.00
instantaneous_output_kbps:0.00
rejected_connections:
sync_full:
sync_partial_ok:
sync_partial_err:
expired_keys:
evicted_keys:
keyspace_hits:
keyspace_misses:
pubsub_channels:
pubsub_patterns:
latest_fork_usec:
migrate_cached_sockets:

# Replication
role:master
connected_slaves:
master_repl_offset:
repl_backlog_active:
repl_backlog_size:
repl_backlog_first_byte_offset:
repl_backlog_histlen:

# CPU
used_cpu_sys:99.45
used_cpu_user:108.88
used_cpu_sys_children:0.01
used_cpu_user_children:0.01

# Cluster
cluster_enabled:

# Keyspace
db0:keys=,expires=,avg_ttl=
[root@redis-server ~]# 

#  完毕，呵呵呵