Hi Team,
I have a performance issue with the web interface.
My Observium is monitoring 3095 devices from which 168 are switches (Just a bit less than 20000 ports total).
My server is an IBM X3650 M4, 32G of ram, 6 cores and a raid 10 of SSD.
I am more than happy with the polling performance has it finishing in under 200seconds.
But the web interface is quite annoying : I have a minimum Time to first bit of ~2seconds.
Once these two seconds have passed the page load almost instantly, graphs included.
So the question is, can I speed things up ?
And if yes how ?
It looks like Observium is spending about a second in the database and says that the Cache took 2 seconds to process (?).
Do I have some leverage on these points to make it faster ?
Page load time (Just a device page) :
Connection Setup TIME
Queueing 5.24 ms
Stalled 1.26 ms
Request sent 0.80 ms
Waiting (TTFB) 3.29 s
Content Download 26.62 ms
Explanation 3.33 s
Observium Performance report :
Page
2.281s
Cache
2.047s
MySQL
Cell
50/0.0633s
Row
35/0.0113s
Rows
49/0.7822s
Column
8/0.0564s
Memory
Cached
180MB
Page
189MB
Peak
229MB
Versions:
Observium
0.16.1.7535 (27th January 2016)
OS
Linux 3.10.0-327.el7.x86_64 [amd64] (CentOS 7.2.1511)
Apache
2.4.6 (CentOS) PHP/5.4.16
PHP
5.4.16
Python
2.7.5
MySQL
5.5.44-MariaDB-log (extension: mysqli 5.5.44-MariaDB)
SNMP
NET-SNMP 5.7.2
RRDtool
1.4.8
Stats :
Statistics
DB size
606MB
RRD size
134GB
Devices
3095
Ports
19390
IPv4 Addresses
6148
IPv4 Networks
44
IPv6 Addresses
2959
IPv6 Networks
1
Services
0
Applications
0
Processors
61262
Memory
15563
Storage
11742
Disk I/O
97461
HR-MIB
96815
Entity-MIB
7292
Syslog Entries
0
Eventlog Entries
172938
Sensors
3863
Toner
Mysqltuner output :
-------- Performance Metrics -------------------------------------------------
[--] Up for: 2d 21h 57m 9s (260M q [1K qps], 5K conn, TX: 283B, RX: 45B)
[--] Reads / Writes: 59% / 41%
[--] Binary logging is disabled
[--] Total buffers: 10.5G global + 4.7M per thread (650 max threads)
[OK] Maximum reached memory usage: 11.2G (35.94% of installed RAM)
[OK] Maximum possible memory usage: 13.5G (43.37% of installed RAM)
[OK] Slow queries: 0% (14K/260M)
[OK] Highest usage of available connections: 21% (142/650)
[OK] Aborted connections: 0.00% (0/5477)
[OK] Query cache efficiency: 32.3% (74M cached / 230M selects)
[OK] Query cache prunes per day: 0
[OK] Sorts requiring temporary tables: 0% (129 temp sorts / 182K sorts)
[OK] Temporary tables created on disk: 0% (201 on disk / 112K total)
[OK] Thread cache hit rate: 97% (142 created / 5K connections)
[OK] Table cache hit rate: 102% (922 open / 896 opened)
[OK] Open file limit used: 5% (52/1K)
[OK] Table locks acquired immediately: 97% (244M immediate / 249M locks)
-------- MyISAM Metrics -----------------------------------------------------
[!!] Key buffer used: 18.0% (28M used / 157M cache)
[OK] Key buffer size / total MyISAM indexes: 150.0M/99.0K
[!!] Read Key buffer hit rate: 93.3% (15 cached / 1 reads)
-------- InnoDB Metrics -----------------------------------------------------
[--] InnoDB is enabled.
[OK] InnoDB buffer pool / data size: 8.0G/579.1M
[!!] InnoDB buffer pool instances: 1
[!!] InnoDB Used buffer: 6.67% (34952 used/ 524287 total)
[OK] InnoDB Read buffer efficiency: 100.00% (2079385726 hits/ 2079395120 total)
[!!] InnoDB Write buffer efficiency: 0.00% (0 hits/ 1 total)
[OK] InnoDB log waits: 0.00% (0 waits / 11253445 writes)
-------- AriaDB Metrics -----------------------------------------------------
[--] AriaDB is disabled.
-------- Replication Metrics -------------------------------------------------
[--] No replication slave(s) for this server.
[--] This is a standalone server..
-------- Recommendations -----------------------------------------------------
General recommendations:
Run OPTIMIZE TABLE to defragment tables for better performance
Remove Anonymous User accounts - there are 2 anonymous accounts.
Set up a Password for user with the following SQL statement ( SET PASSWORD FOR 'user'@'SpecificDNSorIp' = PASSWORD('secure_password'); )
Set up a Secure Password for user@host ( SET PASSWORD FOR 'user'@'SpecificDNSorIp' = PASSWORD('secure_password'); )
Restrict Host for user@% to user@SpecificDNSorIp
Variables to adjust:
innodb_buffer_pool_instances(=8)
-------------------------------------------------------------------------------------
Thanks.
Best regards,
Louis
Louis Bailleul
Computer Systems Engineer
Imaging & Engineering | Imaging
Telephone: +44 1932 376000
Direct: +44 1932 376842
VOIP: 74416842
Mobile: +44 7786 525307
Email: louis.bailleul@pgs.com
A Clearer Image | www.pgs.com
Address: 4 The Heights, Brooklands, Weybridge, Surrey, KT13 0NY, United Kingdom
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