Abstract: The present invention proposes a dynamic resources allocation method and system for guaranteeing tail latency SLO of latency-sensitive applications. A plurality of request queues is created in a storage server node of a distributed storage system with different types of requests located in different queues, and thread groups are allocated to the request queues according to logical thread resources of the service node and target tail latency requirements, and thread resources are dynamically allocated in real time, and the thread group of each request queue is bound to physical CPU resources of the storage server node. The client sends an application's requests to the storage server node; the storage server node stores the request in a request queue corresponding to its type, uses the thread group allocated for the current queue to process the application's requests, and sends responses to the client.

Abstract: A fly ash-based fire-prevention and extinguishing material with carbon dioxide mineralized and stored, and a preparation method thereof are provided. The preparation method includes: separately weighing 100 parts to 120 parts of water, 1 part to 3 parts of a solid strong alkali, and 20 parts to 40 parts of a fly ash as raw materials, pouring the raw materials into a reactor successively to obtain a resulting mixture, and stirring the resulting mixture at a high rotational speed; adding 10 parts to 20 parts of a solubilizing agent to the reactor, sealing the reactor, introducing carbon dioxide to the reactor at room temperature to maintain a carbon dioxide pressure to obtain a resulting slurry, and stirring the resulting slurry at a high rotational speed; and further introducing carbon dioxide into the reactor to increase the carbon dioxide pressure, and stirring the resulting slurry at a low rotational speed.

Abstract: The present invention proposes a dynamic resources allocation method and system for guaranteeing tail latency SLO of latency-sensitive applications. A plurality of request queues is created in a storage server node of a distributed storage system with different types of requests located in different queues, and thread groups are allocated to the request queues according to logical thread resources of the service node and target tail latency requirements, and thread resources are dynamically allocated in real time, and the thread group of each request queue is bound to physical CPU resources of the storage server node. The client sends an application's requests to the storage server node; the storage server node stores the request in a request queue corresponding to its type, uses the thread group allocated for the current queue to process the application's requests, and sends responses to the client.

Abstract: The present application relates to the technical field of communication, and provides a method and a device for controlling camera shooting, a smart device and a computer storage medium, including: collecting voice data of a sound source object; extracting a voice feature based on the voice data of the sound source object; determining a current voice scene according to the extracted voice feature and a voice feature corresponding to the preset voice scene; and acquiring a shooting mode corresponding to the current voice scene, and controlling movement of the camera according to the shooting mode corresponding to the current voice scene. With the method above, frequently shaking can be avoided, and shooting efficiency and user experience can be improved.

Abstract: The present invention discloses a laser animation projection device. The device comprises a controlling mainboard, an X-axis high-speed galvanometer motor, a Y-axis high-speed galvanometer motor and a laser device; a MCU is disposed on the controlling mainboard; an X-axis galvanometer lens is connected to an output shaft of the X-axis high-speed galvanometer motor; a Y-axis galvanometer lens is connected to an output shaft of the Y-axis high-speed galvanometer motor; a display screen is disposed in front of the two galvanometer lenses; a WIFI module is disposed on the controlling mainboard; the laser device is positioned according to positions of the two galvanometer lenses, so as to make the laser emitted by the laser device be reflected onto the display screen through the two galvanometer lenses. A control method for the laser animation projection device is also disclosed.

Abstract: The present invention discloses a laser animation projection device. The device comprises a controlling mainboard, an X-axis high-speed galvanometer motor, a Y-axis high-speed galvanometer motor and a laser device; a MCU is disposed on the controlling mainboard; an X-axis galvanometer lens is connected to an output shaft of the X-axis high-speed galvanometer motor; a Y-axis galvanometer lens is connected to an output shaft of the Y-axis high-speed galvanometer motor; a display screen is disposed in front of the two galvanometer lenses; a WIFI module is disposed on the controlling mainboard; the laser device is positioned according to positions of the two galvanometer lenses, so as to make the laser emitted by the laser device be reflected onto the display screen through the two galvanometer lenses. A control method for the laser animation projection device is also disclosed.

Abstract: The present application is applicable to the field of smart terminal technologies, and a Bluetooth connection method and device and a smart terminal are provided. The method includes: searching, by a terminal device, for a dual-mode Bluetooth device and establishing a connection relationship in a first Bluetooth mode with the dual-mode Bluetooth device; obtaining identification information of the dual-mode Bluetooth device; and establishing a connection relationship in a second Bluetooth mode with the dual-mode Bluetooth device according to the identification information.

Abstract: A data operating method, device, and system are provided and relate to the computer field, so as to resolve a prior-art problem of low efficiency of performing a data operation on a block device by a CPU. The method includes: receiving an operation instruction sent by a CPU; when the operation instruction is a read instruction, reading a first data block in the block device and returning to-be-read data in the first data block to the CPU; or when the operation instruction is a write instruction, writing, into a cache, to-be-written data indicated by the write instruction, and writing, into the block device, a second data block that includes the to-be-written data. The method is used to operate data in a block device.

Abstract: The present application relates to the technical field of communication, and provides a method and a device for controlling camera shooting, a smart device and a computer storage medium, including: collecting voice data of a sound source object; extracting a voice feature based on the voice data of the sound source object; determining a current voice scene according to the extracted voice feature and a voice feature corresponding to the preset voice scene; and acquiring a shooting mode corresponding to the current voice scene, and controlling movement of the camera according to the shooting mode corresponding to the current voice scene. With the method above, frequently shaking can be avoided, and shooting efficiency and user experience can be improved.

Abstract: The present application is applicable to the field of smart terminal technologies, and a Bluetooth connection method and device and a smart terminal are provided. The method includes: searching, by a terminal device, for a dual-mode Bluetooth device and establishing a connection relationship in a first Bluetooth mode with the dual-mode Bluetooth device; obtaining identification information of the dual-mode Bluetooth device; and establishing a connection relationship in a second Bluetooth mode with the dual-mode Bluetooth device according to the identification information.

Abstract: A data operating method, device, and system are provided and relate to the computer field, so as to resolve a prior-art problem of low efficiency of performing a data operation on a block device by a CPU. The method includes: receiving an operation instruction sent by a CPU; when the operation instruction is a read instruction, reading a first data block in the block device and returning to-be-read data in the first data block to the CPU; or when the operation instruction is a write instruction, writing, into a cache, to-be-written data indicated by the write instruction, and writing, into the block device, a second data block that includes the to-be-written data. The method is used to operate data in a block device.

Abstract: A data operating method, device, and system are provided. The method includes: receiving an operation instruction sent by a CPU; when the operation instruction is a read instruction, reading a first data block in the block device and returning to-be-read data in the first data block to the CPU; or when the operation instruction is a write instruction, writing, into a cache, to-be-written data indicated by the write instruction, and writing, into the block device, a second data block that includes the to-be-written data. The method is used to operate data in a block device.

Abstract: A data caching method and a computer system are provided. In the method, when a miss of an access request occurs and a cache needs to determine a to-be-replaced cache line, not only a historical access frequency of the cache line but also a type of a memory corresponding to the cache line needs to be considered. A cache line corresponding to a DRAM type may be preferably replaced, which reduces a caching amount in the cache for data stored in a DRAM and relatively increase a caching amount for data stored in an NVM. For an access request for accessing the data stored in the NVM, corresponding data can be found in the cache whenever possible, thereby reducing cases of reading data from the NVM. Thus, a delay in reading data from the NVM is reduced, and access efficiency is effectively improved.

Abstract: An outdoor laser lamp includes a housing, a laser and a circuit board disposed inside the housing, and a lower mounting plate. A periphery of the lower mounting plate is in contact with an inner wall of the housing, a laser and a circuit board are located between the lower mounting plate and the top of the housing. Air vents are on the bottom of the housing; through holes are on the lower mounting plate, a raised ring wall surrounds each through hole and extends towards the bottom of the housing. The laser lamp realizes air circulation between outside air and the interior of the housing, realizes rapid heat dispersion of the laser lamp to ensure the functionality of the laser lamp. Additionally, it prevents water entering the space where the circuit board is arranged, to avoid the influence on the internal circuits by water.

Abstract: A storage system includes a storage device and a managing device. The managing device receives a data write request, determines a data category of a to-be-written data page, designates different logical blocks for to-be-written data pages of different data categories, and sends a data write instruction to the storage device, where the data write instruction carries to-be-written data pages corresponding to at least one designated logical block. The storage device is configured to receive the data write instruction, and write the to-be-written data page corresponding to the at least one designated logical block to a physical block corresponding to the at least one designated logical block, where to-be-written data pages written to each physical block are corresponding to a same logical block.

Abstract: A data operating method, device, and system are provided. The method includes: receiving an operation instruction sent by a CPU; when the operation instruction is a read instruction, reading a first data block in the block device and returning to-be-read data in the first data block to the CPU; or when the operation instruction is a write instruction, writing, into a cache, to-be-written data indicated by the write instruction, and writing, into the block device, a second data block that includes the to-be-written data. The method is used to operate data in a block device.

Abstract: A data caching method and a computer system are provided. In the method, when a miss of an access request occurs and a cache needs to determine a to-be-replaced cache line, not only a historical access frequency of the cache line but also a type of a memory corresponding to the cache line needs to be considered. A cache line corresponding to a DRAM type may be preferably replaced, which reduces a caching amount in the cache for data stored in a DRAM and relatively increase a caching amount for data stored in an NVM., For an access request for accessing the data stored in the NVM, corresponding data can be found in the cache whenever possible, thereby reducing cases of reading data from the NVM. Thus, a delay in reading data from the NVM is reduced, and access efficiency is effectively improved.

Abstract: An outdoor laser lamp, includes a housing, a laser and a circuit board disposed inside the housing, and a lower mounting plate. A periphery of the lower mounting plate is in contact with an inner wall of the housing, a laser and a circuit board are located between the lower mounting plate and the top of the housing. Air vents are on the bottom of the housing; through holes are on the lower mounting plate, a raised ring wall surrounds each through hole and extends towards the bottom of the housing. The laser lamp realizes air circulation between outside air and the interior of the housing, realizes rapid heat dispersion of the laser lamp to ensure the functionality of the laser lamp. Additionally, it prevents water, entering the space where the circuit board is arranged, to avoid the influence on the internal circuits by water.

Abstract: A data writing method and a memory system are disclosed. The method is applied to a memory system including at least a memory controller and a memory device, and the method includes: receiving, by the memory controller, change information sent by a cache, wherein the change information is information that is generated after the cache divides a first to-be-written cache line cache line of a last level cache LLC into at least one data block and that is used to indicate whether data in each of the at least one data block is changed; for each changed data block in which data is changed, sending, by the memory controller according to the change information, a corresponding column address and corresponding data to the memory device; and for a data block in which data is not changed, skipping performing, by the memory controller according to the change information, a write.