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Performance optimization strategies of last resort [closed]
...ogress in the execution phase. However, integer multiply instructions will block other single-cycle integer instructions from issuing due to requirement of program order." That's why it's usually better to use word-aligned array sizes and lea.
– Crashworks
Mar ...
Difference between Role and GrantedAuthority in Spring Security
...ite permission to edit this resource but a @PreAuthorize interceptor could block his tentative to edit the sub-resource.
Jake
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How to create a new database after initally installing oracle database 11g Express Edition?
..._dir%>>%init_file%
echo audit_trail ='db'>>%init_file%
echo db_block_size=8192>>%init_file%
echo db_domain=''>>%init_file%
echo diagnostic_dest=%db_dir%>>%init_file%
echo dispatchers='(protocol=tcp) (service=%app_name%xdb)'>>%init_file%
echo shared_servers=4>&g...
Is async HttpClient from .Net 4.5 a bad choice for intensive load applications?
...y nature unpredictable. Things that run in 10ms 90% of the time can cause blocking issues when that network resource is congested or unavailable the other 10% of the time.
– Tim P.
Jun 10 '14 at 19:31
...
MQTT物联网协议完全实践指南 · App Inventor 2 中文网
...g:hover { color: #3773f5 } .feedback-pop .feedback-img { display: inline-block; width: 24px; height: 24px; margin-bottom: 4px; background: url(/static/images/feedback.svg) 50% / 100% auto no-repeat; } 文档反馈 切换 目录 在线 客服 ...
How are virtual functions and vtable implemented?
...p;y);
destructFoo(&x);
}
So you can see, a vtable is just a static block in memory, mostly containing function pointers. Every object of a polymorphic class will point to the vtable corresponding to its dynamic type. This also makes the connection between RTTI and virtual functions clearer: ...
What exactly is a reentrant function?
... if called concurrently. But this can be achieved e.g. by using a mutex to block the execution of the second invocation until the first finishes, so only one invocation works at a time. Reentrancy means executing concurrently without interfering with other invocations.
Are all recursive and threa...
Under what circumstances is an SqlConnection automatically enlisted in an ambient TransactionScope T
...sued, even though the code happens to have executed in a transaction scope block that got rolled back. If the connection is not enlisted in the current transaction scope, it's not participating in the transaction, so committing or rolling back the transaction will have no effect on commands issued ...
Difference between Mock / Stub / Spy in Spock test framework
...the original object, manipulating method call parameters and/or results or blocking the original methods from being called at all.
Now here is an executable example test, demonstrating what is possible and what is not. It is a bit more instructive than mikhail's snippets. Many thanks to him for in...
How to merge YAML arrays?
...ten
- *x1
- *x2
- [5, 6]
- !toflatten [7, 8]
(the use of flow vs block style sequences is completely arbitrary and has no influence on the
loaded result).
When iterating over the items that are the value for key m1 this
"recurses" into the sequences tagged with toflatten, but displays
oth...