Re: [WIP] Performance Improvement by reducing WAL for Update Operation
| От | Amit Kapila |
|---|---|
| Тема | Re: [WIP] Performance Improvement by reducing WAL for Update Operation |
| Дата | |
| Msg-id | 003a01cd8012$caf3bbb0$60db3310$@kapila@huawei.com обсуждение исходный текст |
| Ответ на | Re: [WIP] Performance Improvement by reducing WAL for Update Operation (Amit kapila <amit.kapila@huawei.com>) |
| Ответы |
Re: [WIP] Performance Improvement by reducing WAL for Update Operation
|
| Список | pgsql-hackers |
From: Jesper Krogh [mailto:jesper@krogh.cc]
Sent: Wednesday, August 22, 2012 1:13 AM
On 21/08/12 16:57, Amit kapila wrote:
>>Test results:
>>1. The pgbench test run for 10min.
>> 2. The test reult is for modified pgbench (such that total row size is 1800 and updated columns are of length 300) tpc-b testcase.
>> The result and modified pgbench code is attached with mail.
>> 3. The performance improvement shown in the m/c I have tested is quite good (more than 100% for sync commit = off).
> I cannot comment on completeness or correctness of the code, but I do think a relevant test would be
> to turn synchronous_commit on as default.
> Even though you aim at an improved performance, it would be nice to see the reduction in WAL-size
>as an effect of this patch.
Yes, I shall take care of doing both the above tests and send the report.
With Regards,
Amit Kapila.
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