75 results about "Hit rate" patented technology

The invention discloses a multi-core scheduling system and method based on interrupt affinity and a storage medium. The technical problem that data locality guarantee and load balancing are difficult to consider at the same time is solved by constructing a self-adaptive optimization closed loop of perception-decision-execution-feedback, and the method comprises the steps that a routing interruption configuration mechanism provides a basis for dynamic adjustment; an interrupt guide task placement mechanism ensures that an interrupt service program and an associated task are executed in the same CPU core, and the cache hit rate is increased; the execution overhead of an interrupt service program is brought into core load statistics through task context switching and a'task + ISR 'two-dimensional precise load evaluation mechanism triggered by ISR inlet / outlet double nodes, and real load awareness is achieved; a load-driven dynamic interrupt routing mechanism is combined with dual control of a hysteresis threshold and cooling time, so that a ping-pong effect is avoided. According to the method, dynamic load balancing is realized on the premise of keeping data locality, and the real-time response performance and throughput of the multi-core system are remarkably improved.

An operating method of a storage controller includes, storing data and a source type of the data in a cache memory, when a cache hit occurs, determining a source type of data corresponding to the cache hit and updating a hit count corresponding to the determined source type among a plurality of hit counts, determining a source type with a dominant hit rate among a plurality of source types based on the plurality of hit counts, operating in a first mode when a result of the determining indicates that the source type with the dominant hit rate is a first type, and operating in a second mode when the result of the determining indicates that the source type with the dominant hit rate is a second type.

The invention discloses a data caching method and device based on a data access request, terminal equipment and a storage medium, and relates to the technical field of data caching, and the method comprises the steps: determining the service priority of each piece of storage data in a service period through the service period, and according to a service scene, determining the service priority of each piece of storage data; determining a first weight of the access record, a second weight of the importance level and a third weight of the service priority, and performing weighted summation according to the access record, the first weight, the importance level, the second weight, the service priority and the third weight to calculate the data heat of each piece of storage data; and storing the storage data of which the data popularity is greater than a preset popularity threshold into a preset data cache region. Therefore, the data popularity of the storage data in each business period and business scene is evaluated from multiple dimensions, and then the storage data with the data popularity greater than the preset popularity threshold value is stored in the data cache region, so that the problem of low hit rate of cache data in the prior art is effectively solved.

The invention relates to the technical field of server testing, in particular to a server multi-core computing processor load optimization testing method, device and equipment and a medium, and the method comprises the following steps: automatically identifying hardware configuration information of a server; generating a multi-dimensional pressure test plan based on the hardware configuration information; executing the test plan, and monitoring the load rate, the memory bandwidth, the cache hit rate and the I / O performance index of each CPU core in real time; dynamically adjusting a task allocation strategy based on a set load difference threshold to realize task dynamic optimization, and if the difference between the maximum core load rate and the minimum core load rate is monitored to exceed the threshold, triggering a task migration operation; system performance data are collected again, performance indexes before and after optimization are compared and analyzed, and system performance bottlenecks are recognized; and automatically generating a performance test report. The utilization rate and the overall task throughput of the multi-core processor are improved, and the problem that a static task allocation strategy is difficult to adapt to dynamic load changes is solved.

The present application relates to the technical field of semantic processing, and more particularly to a word element aggregation and distribution method and system based on multi-level cache and semantic preheating, which obtains historical word element request interaction logs, analyzes the access characteristics of different business scenarios and context fragments; in combination with semantic dependency relationships, identifies regular repetition and sudden hotspot characteristics of word element access, determines a preloading target set; real-time acquisition of context semantic data of the current inference request, analysis of word element prediction demand parameters to be generated for output; fusion of word element prediction demand parameters and preloading target set, dynamic generation of word element aggregation parameters and distribution scheduling strategy. The present application realizes forward-looking preheating and accurate scheduling of word element resources by deeply mining historical rules and real-time semantic intent, effectively solves the problems of weak semantic perception, low hit rate and response lag of traditional cache strategies, significantly reduces the inference delay of large models, and improves the throughput and stability of the system in high-concurrency scenarios.

The invention discloses a 360-degree video edge caching joint bit rate allocation method based on double time scales, and belongs to the technical field of 360-degree video streaming and edge caching. The method comprises the following steps that: in a long-time scale period, an edge server collects and analyzes historical request data of a user, calculates a comprehensive value priority for candidate video slices according to long, medium and short-term popularity of the slices, and further generates an optimal caching strategy which takes effect in a next period. In a short time scale period, according to the caching strategy, the edge server processes the real-time requests of the user and distributes bit rates to all concurrent requests fairly and efficiently. Through a self-adaptive optimization mechanism combining long-term planning and real-time response, the high cache hit rate of high-value slices can be ensured in different storage spaces, the data request quantity to the cloud is reduced, the pressure of a return link is relieved, and the comprehensive experience quality of a user is remarkably improved.

The invention provides a memory management method, electronic equipment and a related device. Each file in the one or more files in the terminal equipment is divided according to the size of the memory page, and the hot page set is a part of pages in a plurality of pages of the one or more files. When the terminal equipment performs memory management according to the hot page set, in a plurality of pages of the same file, the swap-in priority of pages belonging to the hot page set is higher than that of pages not belonging to the hot page set, and / or the swap-in priority of the pages belonging to the hot page set is higher than that of the pages belonging to the hot page set. The swap-out priorities of the pages not belonging to the hot page set are higher than the swap-out priorities of the pages belonging to the hot page set. According to the method, the hot page and the non-hot page in the file are distinguished by taking the page managed by the memory as the granularity instead of taking the file as the granularity, the hot page in the file can be reserved in the memory for a long time, the hit rate is increased, the non-hot page in the file can be prevented from occupying the memory for a long time, and the memory management efficiency is improved.

This invention relates to the field of mobile communication technology, specifically to a segmented caching method combining user preferences and objective popularity. The method includes: obtaining user ratings and topic preference ratings for each file in a base station file library; determining the request probability of each file in the base station file library from the ratings and topic preference ratings, and forming a first file library from the top m1 files with the highest request probabilities; determining the popularity of each file based on the request probabilities of all users in the base station file library, ranking all files by popularity, and forming a second file library from the top n0 files, removing files that are duplicates of those in the first file library; and dividing the user's cache space into a first space that caches only files from the first file library and a second space that caches only files from the second file library. Compared with other popular caching strategies and optimization algorithms, this invention has a certain advantage in system average cache hit rate.

The application discloses a general verification method and system for multiple lookup table item hit configuration table items, wherein the method comprises the following steps: generating a random character string as a configuration table item template, and obtaining multiple sets of offset collections; obtaining multiple configuration table items corresponding to the multiple sets of offset collections based on the configuration table item template and the multiple sets of offset collections; specifying multiple configuration table items associated with an original message from the obtained configuration table items; and configuring the original message based on the associated configuration table items to obtain an adapted message, which is used for subsequent verification. The application can obtain multiple configuration table items by using the same template, associate the configuration table items with the message, support multiple different lookup table full keys generated from the same message, simultaneously match multiple flow tables, and accurately constrain the hit rate.

The invention is suitable for the technical field of internet data analysis, and provides an accurate pushing method and system based on an e-commerce platform, and the method comprises the steps: firstly, based on the e-commerce platform, according to a sampling time period, rapidly obtaining the latest browsed product of a target user and the information of a plurality of historical browsed products, and then according to the latest browsed product, rapidly pushing a plurality of historical browsed products to the target user. According to the method, the multiple pieces of associated product information corresponding to the latest browsed product are accurately generated, then the target product information is effectively generated based on the multiple pieces of associated product information and the multiple pieces of historical browsed product information, and finally the product pushing instruction is efficiently generated based on the target product information. According to the method, the interest preference and behavior characteristics of the target user can be accurately captured, personalized recommendation of new products is realized, the recommendation strategy is dynamically adjusted in real time, the relevance and hit rate of recommendation are improved, the user experience and satisfaction degree are enhanced, and finally the user conversion rate and sales increase are driven. And accurate and efficient new product pushing is realized.

A method for generating an unbiased evaluation of a portfolio manager. The method includes receiving holdings data of the portfolio manager, detecting one or more decisions from the holdings data corresponding to changes in quantity of an instrument, and generating episode data from the holdings data based on the decisions and a machine learning algorithm. A decision type is determined for the decisions based on a phase identifier and a time window. Value added metrics for the portfolio manager are calculated based on the episode data and the decision type using a machine learning algorithm. The method further includes calculating decision metrics for the decisions, including at least one of hit-rate, payoff, and BA score. The disclosed method enables objective evaluation of portfolio manager performance based on decision-making skills rather than solely on investment outcomes.

The application discloses a kind of translation lookaside buffer table entry processing method, system, medium and product, applied to processor technical field, comprising: when process switching, determine the non-critical table entry corresponding to the process before switching in translation lookaside buffer, obtain target non-critical table entry;The target non-critical table entry is stored in the first cache corresponding to processor core, and the target non-critical table entry is deleted from the translation lookaside buffer;The recovery deadline corresponding to the process before switching issued by operating system is acquired;Based on the recovery deadline, before switching back to the process before switching, the target non-critical table entry is written back to the translation lookaside buffer from the first cache.This way, in the case of guaranteeing the process before switching fast recovery, the hit rate of translation lookaside buffer table entry can be improved, and then the processor performance is improved.

Methods for modeling performance of tiered storage of a data processing service given a decrease in the storage capacity of a warm storage tier of the tiered storage are disclosed. Metadata of the warm storage tier is used to track hits due to incoming queries on data blocks that are stored in the warm storage tier. The metadata prioritizes data block identifiers that correspond to the data blocks stored in the warm storage tier by frequency of hits due to the incoming queries, or various other prioritization schemes. One or more partitions of the metadata may be set that correspond to respective downsized storage capacity scenarios of the warm storage tier. When an incoming query targets a data block within a given partition of the metadata, a hit counter is incremented to track the hit rate that would be made on the downsized warm storage tier corresponding to that partition.

The present application relates to the technical field of content delivery networks (CDNs), and provides a method and system for improving a cache hit rate of an edge CDN sink node. The method comprises: sink node cache servers each recording each URL request on the basis of a request sequence and saving same in a file; deploying an agent on each cache server to perform collection on the file, and collecting a compressed file every set time and uploading the compressed file to a central cache analysis service cluster; saving the number of access times of all URLs in a region, updating the access frequencies of the URLs in real time and sorting same, and screening for a most popular URL list; acquiring, from a database every set time, top N data records among data records that are sorted in a descending sequence on the basis of historical access times; using a CF to convert the top N data records into resource hotspot bitmap information, and issuing the resource hotspot bitmap information to each sink node cache server; and saving the resource hotspot bitmap information in a memory, and persisting the resource hotspot bitmap information in a magnetic disk.

The present disclosure provides a blockchain contract processing method and device, electronic equipment and storage medium, comprising: loading N candidate smart contracts in batches from the to-be-processed smart contracts; in response to identifying that the candidate smart contract needs to perform a target external data read-write operation, judging whether the target external data exists in the local cache; in response to the target external data not existing in the local cache, performing saving processing on the first execution context data of the candidate smart contract, and determining a target contract from the to-be-processed smart contracts except the N candidate smart contracts; replacing the target contract with the candidate smart contract, and loading the target contract to the execution slot of the execution memory corresponding to the candidate smart contract, and executing the target contract. When it is found that the candidate smart contract needs to wait for the database to return, the context is saved and the execution is switched, avoiding the idling of the execution unit, improving the hardware utilization rate, and at the same time, by supporting batch preloading, the cache hit rate and execution continuity are improved.

The invention provides a recommendation system intervention method based on automatic generation of injection users, which comprises the following steps of: after determining hyper-parameters, circularly generating a total budget of the injection users: creating a batch of new users of a clear information set of interaction targets, and initializing recommendation model parameters; model parameters are updated according to the recommendation loss function, a confrontation function and a KL divergence loss function are calculated by using a single-step look-ahead strategy, and user embedding is updated and injected; calculating preference scores, shielding information interacting with the number of times of super-maximum interaction, selecting high-score information interacting with the number of previous maximum interaction budget times, and updating counting; and inputting intervention data to train a target recommendation system, and evaluating a target information hit rate. The invention further provides a recommendation system intervention system based on automatic generation of the injection user, a storage medium and computer equipment. Therefore, high efficiency and effectiveness of injection user generation can be realized, and the promotion intervention effect of clarification information is maximized.

The application discloses a database cache query method and device, equipment and storage medium, belongs to computer technical field, the technical scheme is: the received query request is parsed, according to the analysis result, the ID identification of each data set to be queried is determined, and the corresponding query condition of each data set is determined according to the query request;The ID identification of data set is matched with the ID identification of data set saved in the cache queue one by one;If the matching degree of the ID identification of data set meets the preset condition, the record mapping information corresponding to the data set ID identification saved in the cache queue is read from the database, the data record mapped by the record mapping information is read, and the data record meeting the corresponding query condition of the current data set is matched from the data record, as the query result and return;Solve the technical problem of improving the hit rate of cache and reducing the query pressure of underlying database under the condition of limited cache space.

This invention relates to the field of intelligent logistics warehousing and automated storage technology, specifically a method, system, and apparatus for efficient pallet storage in logistics storage. The method includes: collecting actual outbound instructions and pallet flow records as initial data packets; performing time-series correlation analysis to obtain the spatiotemporal coupling characteristics of orders; extracting pallet flow probabilities and calculating predictive cache hit rates; classifying heat levels based on historical outbound frequencies and assigning migration priorities; calculating the physical topology entropy reduction index of the storage area in conjunction with pallet flow probabilities; extracting idle time slices of handling equipment and calculating fragmented time rebalancing conversion rates; constructing a multi-objective optimization function and solving it to obtain a dynamic topology rearrangement strategy; generating migration trigger conditions and cache execution instructions, and executing them when the conditions are met; and calculating scheduling preemption rollback delays and formulating rearrangement interruption recovery strategies when sudden tasks have higher priority. This invention thereby improves the accessibility and scheduling stability of high-frequency pallets.

The application discloses a software crowdsourcing task recommendation method based on deep learning. At present, many related researches propose to use the deep learning method to recommend the crowdsourcing task text information, but in the existing method, the extraction method of the crowdsourcing task text information lacks universality, and due to the unbalanced distribution characteristics of the crowdsourcing data, the hit rate and diversity cannot be considered in the index of the recommendation result. The method contains three parts: extracting crowdsourcing text features based on a pre-training model Bert, further learning the crowdsourcing text features based on CNN+LSTM, and the output based on the above two models, which can adaptively overcome the loss function of the unbalanced distribution of the crowdsourcing data. Through the application, the developer recommendation of a specific software crowdsourcing platform can be realized simply and efficiently, and the hit rate and diversity of the recommendation result are improved.

The application discloses a quick search method and a terminal under a digital twin environment, obtains a current function area and a search word, and searches in the current function area according to the search word; in the process of searching, the current function area, i.e., the function area currently located in, is preferentially obtained, and searching is performed in the current function area according to the received search word; virtual data is searched in a partitioned manner instead of being searched all at once, the search efficiency is improved, and the search is started from the current function area, which conforms to a conventional thinking mode, further reduces the time of jumping between different function areas, and improves the hit rate of first-time searching.

The invention discloses a computing power server load distribution method and system based on structure perception, and relates to the technical field of multi-core processor scheduling processing. According to the method, task core structure information is collected in real time, task types are determined, three types of structure conflict indexes including a cache conflict index, a power consumption interference factor and an execution unit overlapping degree are calculated, a structure conflict matrix is constructed, a matrix spectrum balance method is adopted to realize load distribution, and hidden conflicts are converted into computable numerical values; local optimization deviation is avoided, the cache hit rate is improved, task delay and performance fluctuation are reduced, the core temperature peak value and power consumption waste are reduced, and collaborative optimization of performance, stability and energy consumption efficiency of the multi-core CPU computing power server is achieved.

The hit rate of a L1 icache when operating with large programs is substantially improved by reserving a section of the L1 icache for regular instructions and a section for non-instruction information. Instructions are prefetched for storage in the instruction section of the L1 icache based on information in the non-instruction section of the L1 icache.

The application relates to the technical field of computers and discloses a GPU computing resource scheduling method and device and a storage medium, and adaptive regulation and control of time slice intervals are realized by constructing a multi-dimensional evaluation model chain; first, task computing density and display memory requirements are used to generate task computing characteristic coefficients; performance efficiency coefficients are output in combination with task average response time and preemption overhead proportion; then, ready queue length and context switching frequency are fused to generate a load synergy factor under the constraints of task characteristics and performance coefficients; meanwhile, hardware health coefficients are evaluated based on hardware temperature and cache hit rate changes; and finally, the optimal time slice interval is dynamically calculated through an interval decision model according to the load synergy factor and the hardware health coefficient. The application solves the problem that fixed time slice scheduling cannot adapt to dynamic changes of mixed workloads, and realizes the collaborative optimization of resource utilization, task response speed and system stability.

The present application relates to the technical field of Internet IPv6 network measurement, in particular to an IPv6 full-response prefix detection method, device and equipment in Internet range and computer storage medium. The present application mines and utilizes the knowledge (i.e. address mode) useful to the active prefix under the detection target prefix from the existing seed prefix, so as to improve the efficiency of target prefix detection, and then enriches the seed prefix library through detection of new prefix; the present application can perform active IPv6 full-response prefix detection on any routing prefix, and always maintains a high hit rate.

The application provides a multi-level page table traversal acceleration method, system, device and medium, and belongs to the technical field of computers. The method comprises the following steps: inputting a virtual address into a path predictor and a dynamic weight hierarchical cache, and collecting an instruction access proportion, a TLB hit rate and a prefetch success rate in real time; performing hash calculation on the virtual address according to a preset bit of the virtual address by the path predictor, querying a history record table to obtain a predicted path and a confidence level, so as to determine a query range; when the cache hits, the score of the hit entry is calculated, the priority of the cache entry is sorted and the elimination decision is made, and a hybrid replacement algorithm is used to manage the cache entry; under a preset condition, a prefetch operation is started by an adaptive prefetch engine, the prefetch step is calculated and dynamically expanded, and memory bandwidth contention is prevented through two-level monitoring; when the instruction access proportion, the TLB hit rate and the prefetch success rate meet the conditions, an instruction priority mode is activated, the score of the hit entry is updated by adjusting the related calculation parameters.

The invention relates to a CDN (Content Delivery Network) caching method and device, computer equipment and a storage medium. The method comprises the following steps: receiving a caching query request sent by a client; sending the cache query request to a target first process; under the condition that the target cache content is not queried in the target first process, the cache query request is sent to a second process; under the condition that the target cache content is not queried in the second process, obtaining the target cache content from a source station corresponding to the domain name in the cache query request; obtaining the file size of the target cache content; and writing the target cache content into the target process according to the file size. According to the content, the cache content corresponding to the cache query request is queried from the first process and the second process by scheduling the management process, so that cross-process cache sharing is realized, and the hit rate of the cache is improved.

The application discloses a kind of double strategy adaptive cache replacement method based on popularity prediction, comprising: collecting equipment request data;With time slot as unit statistics content popularity and constructs model dataset;Build content popularity prediction model based on sequence model Seq2Seq, carry out model training and the structure and weight of the trained popularity prediction model are saved to file respectively.The double strategy adaptive cache replacement method based on popularity prediction provided by the application is for the scene of industrial edge node cache, for the characteristics that data popularity changes with time, excavates the heat trend and tidal nature law of data, and proposes double strategy adaptive cache replacement algorithm and method based on Seq2Seq in combination with traditional cache replacement algorithm and deep learning method.When the prediction model encounters the request sequence of unvisited access popularity, the adaptability of the method successfully improves the cache hit rate of system, reduces network delay, and guarantees the real-time service performance of industrial edge network.

The invention provides an identification method and device of an electric fraud susceptible population and a storage medium, and belongs to the field of financial risk control, and the method comprises the steps: obtaining multi-source data; extracting multi-dimensional feature attributes based on the multi-source data; constructing a risk identification rule set based on the multi-dimensional feature attributes, and dynamically allocating weights for the rules based on the hit rates of the electric fraud victim samples to the rules to form a risk identification rule engine; scoring the electric fraud victim sample by using a risk identification rule engine, and taking an average value of all scores as a set threshold value; and determining a susceptibility score of the to-be-identified account by using a risk identification rule engine, and determining whether a user corresponding to the to-be-identified account is an electric fraud susceptible population according to a difference value between the susceptibility score and a set threshold value. Through the method provided by the invention, the recognition accuracy of the electric fraud susceptible population can be improved, the early warning efficiency is improved, and the customer fund security is effectively protected.

The present application relates to the technical field of computer system cache, and particularly relates to a cache hit rate improving method based on data prefetching, which comprises the following steps: proposing a data prefetching method, defining control parameters and analyzing the range, obtaining the optimal solution of the parameters by using a machine learning algorithm, and helping thread synchronization and construction. The helping thread in the present application can prefetch the data required by the main thread into the shared cache in advance, reduces the influence caused by the missing cost due to the data cache missing of the main thread, and improves the hit rate of the data cache.