apache| Note Author: car East
Summary:
Web application Capacity Planning: The planning of Web services and some simple estimating formulae based on the characteristics of hardware configuration and Web application;
Apache installation process: Apache's General simplified installation option, convenient for later application of the modular configuration;
Modify Hard_server_limit:
Vi/path/to/apache_src/src/include/httpd.h
#define HARD_SERVER_LIMIT 2560
= dultest touser = test ignore = y
View table information
Select O. Owner, T. tablespace_name, O. object_id, O. object_name table_name, O. Created, O. last_ddl_time, O. status,T. num_rows, T. blocks, T. empty_blocks, T. avg_space, T. avg_row_len,/* space usage information */T. pct_free, T. pct_used, T. ini_trans, T. max_trans, T. initial_extent, T. next_extent,T. min_extents, T. max_extents, T. pct_increaseFrom dba_objects o, dba_tables tWhere o. object_name = T. table_name and T. Owner = 't
Since the investment of 20 yuan, according to 28 matrix, each recommended 2 people, copied to the eight layer principle, on time upgrade, you can receive 510 red envelopes, the minimum 20 yuan, 2560 yuan 256.Layer occupies 2 people, in the promotion of a member each give you 20 yuan, a total of 40 yuan;The second floor occupies 4 people, in the promotion 2 level member each gives you 40 yuan, total 160 yuan;The third level occupies 8 people, in the pr
Mainstream Android screen resolutions
For Android game development, we have to think about compatibility with Android tablets like the iPhone. Apple needs to consider the compatibility between iPad, iPhone 3GS, and iPhone 4 screens, which is no exception for Android game development, more models are considered.
In general, we may only consider QVGA, HVGA, WVGA, FWVGA, and DVGA. However, if we leave the phone blank, we may use a tablet like WSVGA's 1024x576 and WXGA's 1280x768.
QVGA = 320*240;
WQ
from the perspective of simplified installation ==> Performance Tuning ==> convenient maintenance. Independent upgrades of application modules such as Apache, PHP, and Resin are completely independent of each other.
WEB application capacity planning: WEB service planning and some simple estimation formulas based on hardware configuration and WEB application characteristics;Apache installation process: common and simplified Installation Options of apache facilitate modular configuration of futur
Abstract: WEB application capacity planning: WEB service planning and some simple estimation formulas are carried out based on hardware configuration and WEB application characteristics. APACHE installation process: General and simplified installation options of apache, facilitates modular configuration of future applications; modifies HARD_SERVER_LIMIT: vipathtoapache_srcsrcincludehttpd.h # defineHARD_SE Apache
Abstract:
WEB application capacity planning: WEB service planning and some simpl
Select a.file_name,a.autoextensible,a.maxbytes,a.increment_by from Dba_data_files A;
--autoextensible automatically expands--maxbytes maximum--increment_by number of automatic expansion blocks
Sql> Show Parameter Db_blockNAME TYPE VALUE------------------------------------ ----------- ------------------------------Db_block_buffers integer 0Db_block_checking Boolean FALSEDb_block_checksum Boolean TRUEDb_block_size integer 8192 --db_block_size*increment_by Block Size * block number = size of au
best choice. The hardware that determines whether the PC can output 4K resolution is the video card, currently only Kepler architecture, GCN architecture, or the stand-alone graphics that update the architecture support output 4K resolution, the set platform aspect will use Haswell architecture processor or Kaveri APU side can support.
First, let's look at how the set up platform outputs the 4K resolution, and the Intel platform must be equipped with the HD Graphics 4200/4400/4600/
Failure phenomenon:
Using an HDMI interface with an external 2560*1440 resolution display, using HDMI single screen output maximum resolution can only reach 1920*1080, this model with HDMI 1.4, why not support 2560*1440 resolution monitor?
Solution:
After testing, the specific situation is as follows:
1. The y470p uses HDMI as the 1.4 standard.
2. The latest specification allows HDMI devices to support
Problem phenomenon:
Using an HDMI interface with an external 2560*1440 resolution display, using HDMI single screen output maximum resolution can only reach 1920*1080, this model with HDMI 1.4, why not support 2560*1440 resolution monitor?
Solution:
After testing, the specific situation is as follows:
1. The equipment uses the HDMI to be 1.4 standard.
2. The latest specification allows HDMI devices to
simplifying the installation ==> performance Tuning ==> maintenance convenience. Let the Apache and Php,resin application modules such as independent upgrades, completely unrelated.
Web application Capacity Planning: The planning of Web services and some simple estimating formulae based on the characteristics of hardware configuration and Web application;
Apache installation process: Apache's General simplified installation option, convenient for later application of the modular configuration;
classmate reflect that our UI is not looking good on the ipad?
1, we are using high-precision equipment to match low-precision resources. (720/1536 matches 640 of resources).
2. There is a gap between the UI layout and the original resource size. (caused by a non-uniform standard) Appendix 1:ppi Relationship to screen model
Data Source: http://blog.csdn.net/guozh/article/details/8954994
"HVGA mdpi""WVGA hdpi""FWVGA hdpi""QHD hdpi""720P xhdpi""1080P xxhdpi" Appendix 2: Common screen resolutions
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