What is the maximum length of a HiLog record? Is it configurable? Why is private displayed in HiLog information when the format parameter %d or %s is specified? What should I do if the hilog.debug log cannot be printed? How do I control the log output level based on the environme...
What is the task scheduling mechanism in TaskPool and Worker? How is the processing result of a C++ thread created by a JS thread using NAPI returned to the JS thread? What is the multithreading model of the system? Can context be transferred across threads? How do I implement secure...
Scheduling algorithm was rewritten. It is possible to schedule from start or from finish. Added various options how the tasks can be moved to correct dependencies, especially the 3 strict variants. Added manual constraint as the minimal or maximal date where the bar was moved by a user. Added...
They typically have a monolithickernelandmicrokernel architecture. The OS kernel is the core of the operating system that provides basic services for all other parts of the OS. Kernels are the main layer between the OS and hardware; they keep user applications from interfering with critical system...
October 2024 Concurrency performance improvements We have recently optimized our task scheduling algorithm in our distributed query processing engine (DQP) to reduce contention when the workspace is under moderate to heavy concurrency. In testing we have observed that this optimization makes significant pe...
capacity. for example, file sizes in bytes, kilobytes, megabytes, or gigabytes are represented as whole numbers. storage capacity, such as the size of hard drives or memory cards, is also measured and expressed using whole numbers. how are whole numbers relevant in algorithm analysis and ...
There are other important optimizations that are currently beyond the capabilities of any compiler—for example, replacing an inefficient algorithm with an efficient one, or changing the layout of a data structure to improve its locality. However, such optimizations are outside the scope of this ...
time OSis designed to be reactive. It processes inputs when they are received and responds within a specific timeframe. If the response time falls outside of the specified time period, the system could fail. Real-time OSes sometimes use rate monotonic scheduling, which assigns priorities to ...
MySQL 8.0 deliversNOWAITandSKIP LOCKEDalternatives in the SQL locking clause. Normally, when a row is locked due to anUPDATEor aSELECT ... FOR UPDATE, any other transaction will have to wait to access that locked row. In some use cases there is a need to either return immediately if a...
A multitasking embedded OS is an OS that controls an embedded system that needs to perform multiple tasks. The tasks may be performed simultaneously if the microprocessor used in the embedded system is capable of it, or they may be scheduled to run according to the scheduling algorithm. ...