Re: How to improve db performance with $7K?

Поиск
Список
Период
Сортировка
От PFC
Тема Re: How to improve db performance with $7K?
Дата
Msg-id op.sod768rgth1vuj@localhost
обсуждение исходный текст
Ответ на Re: How to improve db performance with $7K?  (Steve Poe <spoe@sfnet.cc>)
Ответы Re: How to improve db performance with $7K?  (Dave Cramer <pg@fastcrypt.com>)
Re: How to improve db performance with $7K?  (Dave Cramer <dave@fastcrypt.com>)
Список pgsql-performance
> With hardware tuning, I am sure we can do better than 35Mb per sec. Also

    WTF ?

    My Laptop does 19 MB/s (reading <10 KB files, reiser4) !

    A recent desktop 7200rpm IDE drive
# hdparm -t /dev/hdc1
/dev/hdc1:
  Timing buffered disk reads:  148 MB in  3.02 seconds =  49.01 MB/sec

# ll "DragonBall 001.avi"
-r--r--r--    1 peufeu   users        218M mar  9 20:07 DragonBall 001.avi

# time cat "DragonBall 001.avi" >/dev/null
real    0m4.162s
user    0m0.020s
sys     0m0.510s

(the file was not in the cache)
    => about 52 MB/s (reiser3.6)

    So, you have a problem with your hardware...

В списке pgsql-performance по дате отправления:

Предыдущее
От: Steve Poe
Дата:
Сообщение: Re: How to improve db performance with $7K?
Следующее
От: Simon Riggs
Дата:
Сообщение: Re: Delete query takes exorbitant amount of time