Re: Performance tweaks
| От | Oliver Jowett |
|---|---|
| Тема | Re: Performance tweaks |
| Дата | |
| Msg-id | 421BAF50.3020701@opencloud.com обсуждение исходный текст |
| Ответ на | Performance tweaks (Ken Geis <kgeis@speakeasy.net>) |
| Ответы |
Re: Performance tweaks
Re: Performance tweaks |
| Список | pgsql-jdbc |
Ken Geis wrote:
> First, in PGStream, I "unrolled" SendInteger4 and SendInteger2, like this:
>
> private static final byte[] B4 = new byte[4];
> public void SendInteger4(int val) throws IOException
> {
> B4[0] = (byte) ((val >> 24)&255);
> B4[1] = (byte) ((val >> 16)&255);
> B4[2] = (byte) ((val >> 8)&255);
> B4[3] = (byte) (val&255);
> pg_output.write(B4, 0, 4);
> }
This isn't safe across multiple PGStreams. Can you try benchmarking
again with "private final" instead of "private static final"? If that's
still a win it is probably worth changing.
-O
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