Today the last day, mainly trained BSP, QT, KVM cloud computing-related content. Roughly summarizes some of their own concerns. Training materials have been uploaded to the server, if need be concerned about the next Fanger Wei code, background direct reply to "profile" get. Information on actual combat has not been exported, the export will be uploaded to the server and so on. Draw readers in recent days to update.
1, BSP
a, 2K1000 maximum support of nand monolithic 16GB, the best selection controller SLC FLASH type operation.
b, 2K1000 can interface to the recommended baud rate is 500K to 1M, 500K or less support but also need to provide technical support and coordination Godson technical personnel changes.
c, HEAT, high reliability clock to provide periodic interrupts, mainly to solve the viewing CPU resource usage.
d, PCIE interrupt number: PCIE device interrupt number is determined according to the slot number of PCIE. 3A-7A 2K1000 and distinct piece, the PCIE interrupt number is 32 ~ 39,2K1000 two interrupt controllers to manage the interrupt number from 0 to 63, respectively, 0 0 ~ management interrupt controller controlling an interrupt number 31,1 Manager 32 to 63, arranged so that when the BSP, it is necessary to interrupt number PCIE Save 32.3A-7A has only one interrupt controller 32 need not reduced.
That some other user feedback more problems and solutions. Some use the test tools. More concerned about the test tool is EDR, netperf.
EDR should be noted that the Godson BSP not integrated this tool, so you need to add some components, attention EDR, there are a lot of hook function, it is estimated that there involves some memory-related operations, hook comparison function registered affecting the normal program run, it is recommended the debugging tool available on the restart log record does not recommend an increase in the latter part of the project related components.
For more information on specific issues analysis shows that in 3_1_1_vxWorks_user_201910.pdf
2，Loongnix
a, Loongnix operating system is open source community launched the Godson linux operating system, providing the basic version, users can apply to develop their own versions of the operating system on it.
b, which itself is based on the community edition Fedora21 build out. Now mainly used as office, production and other applications.
c, said Tencent's official website can now download and QQ micro letter to the platform.
d, micro-channel under the platform is based on the development of electron.
e, the compiler provides Godson version GCC4.9 maintenance, while providing DevTools-7.3 compiler, the compiler is likely to be some major problems to deal with GCC4.9 compile time, it provides DevTool compiler.
f, more supported languages, C / C ++, golang, java, ruby and so on. It should be noted that loognix say the system does not default jdk integrated and long-term maintenance in version 1.8, more support nowadays is hot go language.
g, the latest version supports the RX580, RX590, WX7100, these cards are not supported by previous versions, where N adapter card is not sufficient.
Other specific community web site, source address, bug feedback platform can reference 4_1_Loongnix_roadmap.pdf.
3, virtualization, cloud computing
a, currently supports four versions of docker {1.12,1.13, docker-CE17, docker-CE18}, is recommended in the presence of 1.12 and 1.13 stability, it is recommended to use the docker-CE18.06.
b, support ceph distributed storage that is already deployed in its internal 4-way server, currently running for a year without a problem.
c, Godson transplanted Openstack rocky version. Verified by.
d, cloud terminal spice is recommended protocol.
e, Loongnix1.0-1906 the previous version, the system is deployed openstack, do not recommend any other purpose, saying that there will be conflict RPM package version, the new version of the package has been resolved conflicts.
f, KVM supports nat, bridge, openvswitch is in the research stage.
Some examples of specific applications and may explain the references 4_2_KVM_cloud.pdf.
4, the final show-Swiss visualization platform .
Specific products no physical display, by explaining feel pretty good. Specific reference 4_3_GIS.pdf
Training materials have been uploaded to the server, if need be concerned about the public under the number, reply directly to the background "information" to obtain. Information on actual combat has not yet export, and export is uploaded to the server. Draw readers in recent days to update.