Details on redis state monitoring and performance tuning
- 2020-06-01 11:15:41
- OfStack
preface
For any application service or component, a complete reliable spectrum monitoring scheme is required.
In particular, redis such as sensitive pure memory, high concurrency and low latency services, a set of perfect monitoring and warning scheme, is the premise of fine operation.
This article mainly introduced the redis state monitoring and performance tuning related content, to share for your reference to learn, the following words do not say, to 1 see the detailed introduction.
1, benchmark redis -
redis benchmark information, redis server performance detection
Such as:
Test redis server performance, native 6379 port instances, 100 concurrent connections, 100,000 requests
redis-benchmark -h localhost -p 6379 -c 100 -n 100000
[root@redis-server ~]# redis-benchmark -h localhost -p 6379 -c 100 -n 100000
====== PING_INLINE ======
requests completed in 1.29 seconds
parallel clients
bytes payload
keep alive: 1
81.97% <= 1 milliseconds
97.69% <= 2 milliseconds
99.79% <= 3 milliseconds
99.94% <= 4 milliseconds
99.97% <= 5 milliseconds
100.00% <= 5 milliseconds
77639.75 requests per second
====== PING_BULK ======
requests completed in 1.49 seconds
parallel clients
bytes payload
keep alive: 1
73.04% <= 1 milliseconds
97.46% <= 2 milliseconds
99.62% <= 3 milliseconds
99.97% <= 4 milliseconds
100.00% <= 5 milliseconds
100.00% <= 5 milliseconds
67204.30 requests per second
====== SET ======
requests completed in 1.30 seconds
parallel clients
bytes payload
keep alive: 1
81.09% <= 1 milliseconds
97.16% <= 2 milliseconds
99.43% <= 3 milliseconds
99.75% <= 4 milliseconds
99.80% <= 5 milliseconds
99.82% <= 7 milliseconds
99.83% <= 8 milliseconds
99.85% <= 9 milliseconds
99.87% <= 10 milliseconds
99.89% <= 11 milliseconds
99.89% <= 12 milliseconds
99.90% <= 13 milliseconds
99.90% <= 14 milliseconds
99.90% <= 15 milliseconds
99.91% <= 16 milliseconds
99.93% <= 17 milliseconds
99.94% <= 18 milliseconds
99.95% <= 19 milliseconds
99.96% <= 20 milliseconds
99.98% <= 21 milliseconds
99.99% <= 22 milliseconds
100.00% <= 23 milliseconds
100.00% <= 23 milliseconds
76687.12 requests per second
====== GET ======
requests completed in 1.91 seconds
parallel clients
bytes payload
keep alive: 1
49.74% <= 1 milliseconds
93.92% <= 2 milliseconds
99.37% <= 3 milliseconds
99.95% <= 4 milliseconds
99.97% <= 5 milliseconds
99.98% <= 6 milliseconds
100.00% <= 6 milliseconds
52273.91 requests per second
====== INCR ======
requests completed in 1.60 seconds
parallel clients
bytes payload
keep alive: 1
66.32% <= 1 milliseconds
96.55% <= 2 milliseconds
99.61% <= 3 milliseconds
99.96% <= 4 milliseconds
100.00% <= 5 milliseconds
62344.14 requests per second
====== LPUSH ======
requests completed in 1.27 seconds
parallel clients
bytes payload
keep alive: 1
73.84% <= 1 milliseconds
95.61% <= 2 milliseconds
99.36% <= 3 milliseconds
99.96% <= 4 milliseconds
99.99% <= 5 milliseconds
100.00% <= 5 milliseconds
78492.93 requests per second
====== RPUSH ======
requests completed in 1.31 seconds
parallel clients
bytes payload
keep alive: 1
80.47% <= 1 milliseconds
96.93% <= 2 milliseconds
99.56% <= 3 milliseconds
99.98% <= 4 milliseconds
100.00% <= 5 milliseconds
100.00% <= 5 milliseconds
76103.50 requests per second
====== LPOP ======
requests completed in 1.30 seconds
parallel clients
bytes payload
keep alive: 1
74.91% <= 1 milliseconds
95.50% <= 2 milliseconds
99.29% <= 3 milliseconds
99.95% <= 4 milliseconds
100.00% <= 5 milliseconds
100.00% <= 5 milliseconds
77101.00 requests per second
====== RPOP ======
requests completed in 1.40 seconds
parallel clients
bytes payload
keep alive: 1
77.99% <= 1 milliseconds
97.07% <= 2 milliseconds
99.61% <= 3 milliseconds
99.97% <= 4 milliseconds
99.98% <= 5 milliseconds
100.00% <= 6 milliseconds
100.00% <= 6 milliseconds
71377.59 requests per second
====== SADD ======
requests completed in 1.32 seconds
parallel clients
bytes payload
keep alive: 1
80.83% <= 1 milliseconds
97.14% <= 2 milliseconds
99.57% <= 3 milliseconds
99.95% <= 4 milliseconds
100.00% <= 5 milliseconds
100.00% <= 5 milliseconds
75757.57 requests per second
====== HSET ======
requests completed in 1.30 seconds
parallel clients
bytes payload
keep alive: 1
80.25% <= 1 milliseconds
96.83% <= 2 milliseconds
99.49% <= 3 milliseconds
99.97% <= 4 milliseconds
100.00% <= 4 milliseconds
76923.08 requests per second
====== SPOP ======
requests completed in 1.48 seconds
parallel clients
bytes payload
keep alive: 1
73.97% <= 1 milliseconds
96.91% <= 2 milliseconds
99.55% <= 3 milliseconds
99.96% <= 4 milliseconds
100.00% <= 5 milliseconds
100.00% <= 5 milliseconds
67567.57 requests per second
====== LPUSH (needed to benchmark LRANGE) ======
requests completed in 1.35 seconds
parallel clients
bytes payload
keep alive: 1
71.03% <= 1 milliseconds
95.36% <= 2 milliseconds
99.29% <= 3 milliseconds
99.97% <= 4 milliseconds
100.00% <= 5 milliseconds
100.00% <= 5 milliseconds
73909.83 requests per second
====== LRANGE_100 (first 100 elements) ======
requests completed in 2.91 seconds
parallel clients
bytes payload
keep alive: 1
14.30% <= 1 milliseconds
80.30% <= 2 milliseconds
94.42% <= 3 milliseconds
96.88% <= 4 milliseconds
98.34% <= 5 milliseconds
99.39% <= 6 milliseconds
99.78% <= 7 milliseconds
99.93% <= 8 milliseconds
99.97% <= 9 milliseconds
99.98% <= 10 milliseconds
100.00% <= 11 milliseconds
100.00% <= 11 milliseconds
34317.09 requests per second
====== LRANGE_300 (first 300 elements) ======
requests completed in 5.88 seconds
parallel clients
bytes payload
keep alive: 1
0.00% <= 2 milliseconds
85.83% <= 3 milliseconds
94.17% <= 4 milliseconds
96.10% <= 5 milliseconds
97.90% <= 6 milliseconds
98.68% <= 7 milliseconds
98.70% <= 8 milliseconds
99.30% <= 9 milliseconds
99.49% <= 10 milliseconds
99.76% <= 11 milliseconds
99.79% <= 12 milliseconds
99.83% <= 13 milliseconds
99.85% <= 14 milliseconds
99.87% <= 15 milliseconds
99.89% <= 16 milliseconds
99.91% <= 17 milliseconds
99.92% <= 19 milliseconds
99.93% <= 20 milliseconds
99.94% <= 21 milliseconds
99.95% <= 22 milliseconds
99.96% <= 23 milliseconds
99.97% <= 24 milliseconds
99.99% <= 25 milliseconds
99.99% <= 26 milliseconds
100.00% <= 27 milliseconds
17006.80 requests per second
====== LRANGE_500 (first 450 elements) ======
requests completed in 8.16 seconds
parallel clients
bytes payload
keep alive: 1
0.00% <= 2 milliseconds
0.01% <= 3 milliseconds
80.98% <= 4 milliseconds
90.89% <= 5 milliseconds
95.60% <= 6 milliseconds
97.20% <= 7 milliseconds
98.23% <= 8 milliseconds
98.53% <= 9 milliseconds
99.06% <= 10 milliseconds
99.09% <= 11 milliseconds
99.46% <= 12 milliseconds
99.53% <= 13 milliseconds
99.65% <= 14 milliseconds
99.75% <= 15 milliseconds
99.79% <= 16 milliseconds
99.81% <= 17 milliseconds
99.82% <= 18 milliseconds
99.84% <= 19 milliseconds
99.85% <= 20 milliseconds
99.86% <= 21 milliseconds
99.87% <= 22 milliseconds
99.88% <= 23 milliseconds
99.89% <= 24 milliseconds
99.90% <= 25 milliseconds
99.91% <= 26 milliseconds
99.93% <= 27 milliseconds
99.93% <= 28 milliseconds
99.94% <= 29 milliseconds
99.95% <= 30 milliseconds
99.96% <= 31 milliseconds
99.98% <= 32 milliseconds
99.98% <= 33 milliseconds
99.99% <= 34 milliseconds
99.99% <= 35 milliseconds
100.00% <= 36 milliseconds
100.00% <= 36 milliseconds
12260.91 requests per second
====== LRANGE_600 (first 600 elements) ======
requests completed in 10.15 seconds
parallel clients
bytes payload
keep alive: 1
0.00% <= 3 milliseconds
0.01% <= 4 milliseconds
84.84% <= 5 milliseconds
93.41% <= 6 milliseconds
96.43% <= 7 milliseconds
97.71% <= 8 milliseconds
97.75% <= 9 milliseconds
98.32% <= 10 milliseconds
98.79% <= 11 milliseconds
99.19% <= 12 milliseconds
99.22% <= 13 milliseconds
99.25% <= 14 milliseconds
99.48% <= 15 milliseconds
99.56% <= 16 milliseconds
99.60% <= 17 milliseconds
99.68% <= 18 milliseconds
99.74% <= 19 milliseconds
99.77% <= 20 milliseconds
99.79% <= 21 milliseconds
99.82% <= 22 milliseconds
99.83% <= 23 milliseconds
99.85% <= 24 milliseconds
99.86% <= 25 milliseconds
99.86% <= 26 milliseconds
99.87% <= 27 milliseconds
99.88% <= 28 milliseconds
99.89% <= 29 milliseconds
99.90% <= 30 milliseconds
99.90% <= 31 milliseconds
99.91% <= 32 milliseconds
99.91% <= 33 milliseconds
99.92% <= 34 milliseconds
99.94% <= 35 milliseconds
99.95% <= 36 milliseconds
99.95% <= 37 milliseconds
99.96% <= 38 milliseconds
99.96% <= 39 milliseconds
99.96% <= 40 milliseconds
99.97% <= 41 milliseconds
99.98% <= 42 milliseconds
99.98% <= 43 milliseconds
99.99% <= 44 milliseconds
99.99% <= 45 milliseconds
99.99% <= 46 milliseconds
100.00% <= 47 milliseconds
100.00% <= 47 milliseconds
9851.25 requests per second
====== MSET (10 keys) ======
requests completed in 1.89 seconds
parallel clients
bytes payload
keep alive: 1
0.00% <= 1 milliseconds
75.00% <= 2 milliseconds
89.85% <= 3 milliseconds
95.38% <= 4 milliseconds
98.52% <= 5 milliseconds
99.34% <= 6 milliseconds
99.60% <= 7 milliseconds
99.83% <= 8 milliseconds
99.98% <= 9 milliseconds
100.00% <= 9 milliseconds
52994.17 requests per second
[root@redis-server ~]#2, redis - cli
Example 1: monitoring data operations for instances of native port 6379, connection and read/write operations for redis
redis-cli -h localhost -p 6379 monitor Start with 1 terminal 1 for redis monitoring
[root@redis-server ~]# redis-cli -h localhost -p 6379 monitor
OK
1504689350.635365 [0 127.0.0.1:57996] "COMMAND"
1504689361.944610 [0 127.0.0.1:57996] "set" "a" "1"
1504689369.782029 [0 127.0.0.1:57996] "get" "a"Then open an redis terminal 2 for operation
[root@redis-server ~]# redis-cli -p 6379
127.0.0.1:6380> set a 1
OK
127.0.0.1:6380> get a
"1"
127.0.0.1:6380>You can see that the data manipulation on terminal 2 will be recorded on terminal 1
Example 2: query the information of the native redis instance, port 6379
redis-cli -h localhost -p 6379 info Note: this command can also be queried in the redis terminal
[root@redis-server ~]# redis-cli -h localhost -p 6379 info
# Server
redis_version:3.2.10
redis_git_sha1:00000000
redis_git_dirty:0
redis_build_id:eae5a0b8746eb6ce
redis_mode:standalone
os:Linux 2.6.32-431.el6.x86_64 x86_64
arch_bits:64
multiplexing_api:epoll
gcc_version:4.4.7
process_id:6003
run_id:0057d03b2e908ee036c2aa1c3531e8aa051d7468
tcp_port:6379
uptime_in_seconds:159221
uptime_in_days:1
hz:10
lru_clock:11517636
executable:/usr/local/redis/bin/redis-server
config_file:/usr/local/redis/conf/redis.conf
# Clients
connected_clients:1
client_longest_output_list:0
client_biggest_input_buf:0
blocked_clients:0
# Memory
used_memory:1828104
used_memory_human:1.74M
used_memory_rss:4050944
used_memory_rss_human:3.86M
used_memory_peak:8439360
used_memory_peak_human:8.05M
total_system_memory:1960443904
total_system_memory_human:1.83G
used_memory_lua:37888
used_memory_lua_human:37.00K
maxmemory:0
maxmemory_human:0B
maxmemory_policy:noeviction
mem_fragmentation_ratio:2.22
mem_allocator:jemalloc-4.0.3
# Persistence
loading:0
rdb_changes_since_last_save:0
rdb_bgsave_in_progress:0
rdb_last_save_time:1504689256
rdb_last_bgsave_status:ok
rdb_last_bgsave_time_sec:0
rdb_current_bgsave_time_sec:-1
aof_enabled:0
aof_rewrite_in_progress:0
aof_rewrite_scheduled:0
aof_last_rewrite_time_sec:-1
aof_current_rewrite_time_sec:-1
aof_last_bgrewrite_status:ok
aof_last_write_status:ok
# Stats
total_connections_received:3603
total_commands_processed:3600007
instantaneous_ops_per_sec:0
total_net_input_bytes:192800186
total_net_output_bytes:2634476722
instantaneous_input_kbps:0.00
instantaneous_output_kbps:0.00
rejected_connections:0
sync_full:0
sync_partial_ok:0
sync_partial_err:0
expired_keys:0
evicted_keys:0
keyspace_hits:1000003
keyspace_misses:0
pubsub_channels:0
pubsub_patterns:0
latest_fork_usec:408
migrate_cached_sockets:0
# Replication
role:master
connected_slaves:0
master_repl_offset:0
repl_backlog_active:0
repl_backlog_size:1048576
repl_backlog_first_byte_offset:0
repl_backlog_histlen:0
# 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:0
# Keyspace
db0:keys=7,expires=0,avg_ttl=0
[root@redis-server ~]#conclusion