Willian, bom dia

 

Como esta o parâmetro de shared buffer com postgresql.conf?

 

 

WAGNER ROGERIO GARCIA

 

 

De: pgbr-geral [mailto:[email protected]] Em nome de 
Willian César
Enviada em: quarta-feira, 3 de agosto de 2016 10:05
Para: [email protected]
Assunto: [pgbr-geral] Servidor utilizando muita memória

 

Bom dia à todos!

 

Estou realizando um serviço em um cliente que possui um ERP que trabalha com 
PostgreSQL 9.3.

O servidor está virtualizado com Xen e a VM do banco de dados possui 16GB RAM / 
CentOS 6.

 

Com o comando "free -m" o resultado é:

             total       used       free     shared    buffers     cached

Mem:         15943      15795        148       3161         52      14104

-/+ buffers/cache:       1638      14305

Swap:         5007         42       4965 

 

 

Comando "top":

 

Cpu0  :  0.0%us,  0.0%sy,  0.0%ni,100.0%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st

Cpu1  :  0.3%us,  0.7%sy,  0.0%ni, 99.0%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st

Cpu2  :  0.0%us,  0.0%sy,  0.0%ni,100.0%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st

Cpu3  :  0.0%us,  0.0%sy,  0.0%ni,100.0%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st

Cpu4  :  0.0%us,  0.0%sy,  0.0%ni,100.0%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st

Cpu5  :  0.0%us,  0.3%sy,  0.0%ni, 99.7%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st

Cpu6  :  0.0%us,  0.0%sy,  0.0%ni,100.0%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st

Cpu7  :  0.0%us,  0.0%sy,  0.0%ni,100.0%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st

Cpu8  :  4.7%us,  1.7%sy,  0.0%ni, 75.7%id, 18.0%wa,  0.0%hi,  0.0%si,  0.0%st

Cpu9  : 25.0%us,  6.1%sy,  0.0%ni, 67.6%id,  0.3%wa,  0.0%hi,  0.7%si,  0.3%st

Mem:  16326604k total, 16174792k used,   151812k free,    37652k buffers

Swap:  5128188k total,    44252k used,  5083936k free, 14336948k cached

 

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND

 1983 postgres  20   0 3351m 2.7g 2.7g S  0.0 17.1   1:33.46 postgres: 
checkpointer process

 1984 postgres  20   0 3350m 2.4g 2.4g S  0.3 15.2   0:39.87 postgres: writer 
process

13753 postgres  20   0 3395m 2.3g 2.3g S  0.0 14.9   5:46.68 postgres: postgres 
GIX 192.168.0.9(48300) idle

 

 

Devo aumentar o parâmetro "checkpoint_segments" ?

 

Checkpoint confs:

 

checkpoint_segments = 32                # in logfile segments, min 1, 16MB each

checkpoint_timeout = 40min              # range 30s-1h

checkpoint_completion_target = 0.9      # checkpoint target duration, 0.0 - 1.0

checkpoint_warning = 30s                # 0 disables

log_checkpoints = on

 

 

OBS.: a empresa que desenvolve o ERP não possui ninguém capacitado para ajudar.

 

 

Atenciosamente,

Willian César Cincerre da Silva

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