| Bug #47529 | query cache performance is bad on multi-core servers | ||
|---|---|---|---|
| Submitted: | 22 Sep 2009 22:15 | Modified: | 9 Dec 2010 1:01 |
| Reporter: | Mark Callaghan | Email Updates: | |
| Status: | Duplicate | Impact on me: | |
| Category: | MySQL Server: Query Cache | Severity: | S5 (Performance) |
| Version: | 5.1.38, 5.1.39 | OS: | Any |
| Assigned to: | Assigned Account | CPU Architecture: | Any |
| Tags: | cache, core, multi, performance, query, SMP | ||
If the data you need to attach is more than 50MB, you should create a compressed archive of the data, split it to 50MB chunks, and upload each of them as a separate attachment.
To split a large file:
- On *nix platforms use the split command e.g.
split -b 50MB <my_large_archive> <my_split_archive_prefix> - On windows use WinZip or a similar utility to split the large file
