43 results about "Memory working" patented technology

A computer implemented method, apparatus, and computer usable program code for sampling call stack information. A flag associated with a target thread is set in a memory work area associated with a virtual machine in response to an interrupt. Monitoring for an event during execution of a plurality of threads created by the virtual machine. A determination is made as to whether the flag is set in response to an occurrence of the event. If the flag is set, the virtual machine makes a call out to a profiler which initiates sampling of the call stack information in response to the flag being set.

The invention discloses a method for acquiring virtual machine memory working sets and a memory optimization and allocation method. The method for acquiring the virtual machine memory working sets comprises the first step of modifying a memory page access mechanism of a VMM, wherein the access permission of PTEs of all one-stage page tables of VMs is set into a system state; the second step of generating minor page failures into the VMM when one memory page is accessed by one VM, acquiring the virtual address of the page and the page table address of the page through the VMM and setting the PTE access permission of the page into a user state; the third step of recording the addresses of the pages accessed by the VMs to a corresponding LRU histogram used recently through the VMM, and drawing a failure rate curve to obtain the memory working sets WSS of all VMs; the fourth step of allocating memory for all VMs through the VMM according to WSS of the VMs and needs. By means of the method, the cost for acquiring the memory sets of VMs can be reduced, allocation according to needs and the memory of the VMs can be achieved, and the utilization rate of resources can be greatly improved.

Scoring and detecting anomalies in a dynamic number of transaction records within a relational database management system by initiating a function for accepting and storing a transaction record in the relational database management system; This function and the analytics are integral to the RDBMS, as distinguished from extracting the data and passing the data to a separate application external to the RDBMS. The function determines if the transaction is for a different individual then a previous transaction or for the same individual. If the transaction is not for a different individual, adding the new transaction data to a memory work space and returning a NULL statement, otherwise passing the memory work space to a service. In the next step the memory workspace is accepted and an analytic model is executed to produce a score, and return the score to a calling function. This score is received at the calling function, the memory work space for the individual is released, and the score is returned to the calling statement. All of the NULL statements are collapsed and a single record is retained for the individual. This record contains the score, that is, a buying preference or pattern, a travel pattern, a calling pattern, a maintenance prediction, a risk score, or a credit score, by way of illustration.

The invention provides a reliable password protection method of a mobile device, which achieves password protection by setting corresponding answer for a password protection problem, wherein the main method is as follows: setting the password protection problem and corresponding answer automatically on the mobile device. Correspondingly, a mobile device for achieving reliable password protection method falls into a protection range of the invention. The method in the invention can enable a user to actively participate in setting problem with certain objectivity, so that memory work of the user can be lightened and possibility that the user forgets the password is reduced to a great extent.

A controller of a memory device which accesses a memory of the memory device having a data storage area and a data correction area. The controller includes a mode selection unit When the memory works with a first operation voltage, the mode selection unit selects a first mode of the controller, and the controller writes input data into the data storage area to serve as storage data and reads the storage data from the data storage area. When the memory works with a second operation voltage, the mode selection unit selects a second mode of the controller, and the controller performs a correction function to encode the input data to generate encoded input data, writes the encoded input data into the data storage area and the data correction area to respectively serve as the storage data and correction data, and reads and decodes the storage data and the correction data.

A deque of a local process in a memory work-stealing implementation may use one or more data structures to perform work. If the local process attempts to add a new value to its deque's data structure when the data structure is full (i.e., an overflow condition occurs), the contents of the data structure are copied to a larger allocated data structure (e.g., an array of greater size than an original array). The entries in the original, smaller-sized data structure are copied to exact positions in the now-active, larger-sized data structure. By this technique, the local process is thus provided with space to add the new value.

A dynamic memory work-stealing technique involves the implementation of a deque as a doubly-linked list of nodes. All, or almost all, of the nodes are memory structures that may be dynamically allocated and freed from a shared node pool accessible to a plurality of processes. When a process has exhausted its local memory resources, the process may “steal” memory resources from another process that has available memory resources.

The invention relates to a memory test method, which includes: 1) writing data; 2) reading data; 3) if the address line digit of a to-be-tested memory is lower than or equal to the address line digit of an address generator ATE, making use of the address generator ATE to see whether the read data and written data are the same so as to judge whether all memory cells of the to-be-tested memory work normally; if the address line digit of the to-be-tested memory is higher than the address line digit of the address generator ATE, dividing the address line digit of the to-be-tested memory into low digit address lines and high digit address lines; according to the increase of fixed addresses, partitioning all the memory cells of the tested memory into blocks, increasing the fixed addresses from all 0 to all 1, and dividing a memory cell along with every 1 increase; and connecting the low digit address lines to the address generator ATE, which can automatically generate address data. The method provided in the invention has the advantages of effective use of ATE resources, reduction of test pattern compilation time and improvement of programming efficiency.

The invention provides an online memory fault detecting method and device. The method comprises writing data in a CPU (central processing unit) into a working memory and a mapping memory simultaneously; performing real-time bit-by-bit comparison on the data of the CPU, which are written into the working memory and the mapping memory through a comparing unit; when the memory comparison results are identical, determining the memories work normally; if the memory comparison results are not identical, determining that the memories fail and performing corresponding treatment; writing different data into virtual space outside the memory space and the mapping memory simultaneously through the CPU and performing real-time bit-by-bit comparison through the comparing unit to achieve self-inspection of the comparing unit; when the self-inspection results are identical, determining that the comparing unit fails; when the self-inspection results are not identical, determining that the comparing unit works normally. The online memory fault detecting method improves the timeliness of memory fault detection and reduces the possibility of damage caused by memory faults.

The invention provides a memory working voltage range measuring method, which comprises the following steps of: inserting a memory into a computer, wherein the computer comprises a restarting interface; ordering a reference voltage as a working voltage supplied to the memory, and making the computer execute a memory test program by using the memory; continuously detecting whether the computer runs normally; when the computer finishes executing the memory test program, recording the working voltage of the memory as a previous voltage; adding an offset to the working voltage; supplying the added working voltage to the memory, and making the computer execute a memory test program by using the memory; and when the computer runs abnormally, judging that the previous voltage is a first voltage critical value of the memory, triggering the computer to restart through the restarting interface, and measuring a second voltage critical value of the memory.

The invention relates to a no-setting pump no-liquid idling preventing protector. The protector is characterized in that a self-defining reference memory protection module begins to automatically memorize a certain numerical value of a working current as a reference serving as a no-load current set value when a pump motor is started up and runs normally; and when a phenomenon of no-liquid idling occurs and the working current is enabled to drop to a value lower than the automatically memorized no-load current set value, the protector can perform a protection function and automatically stop the motor, so that the specifications and the varieties of products can be reduced, the protector of each specification can be used freely within a large range, and the problems of false protection or no protection caused by inaccurate calibration setting or other reasons can be solved.

The invention discloses a multi-core memory driver and a memory method thereof, and belongs to the technical field of memory of English words. The multi-core memory driver comprises a computer management system, the computer management system is internally provided with a textbook synchronous database, the textbook synchronous database is connected with a cloud database through a wireless networktransmission signal, and the computer management system comprises a timing screening module, an operation statistics module and a simulation brain forgetting module, wherein the timing screening module, the operation statistics module and the simulation brain forgetting module are mutually independent, and the timing screening module, the operation statistics module and the simulation brain forgetting module are in a lateral relationship and supplements one another. The timing screening module is internally provided with a timing module and an intelligent screening module, and the operation statistics module is internally provided with an operation module and an intelligent statistics module, so that memory work of the brain can be reduced, the brain activity is improved, and the memory level is improved.

The invention discloses an early warning method and device for a memory fault, relates to the technical field of computers, and mainly aims to describe features corresponding to a memory working state from multiple dimensions so as to predict whether the memory has a fault risk or not. According to the main technical scheme, the method comprises the steps of obtaining an abnormal log of equipment; analyzing time sequence change characteristics of the memory exception logs according to a preset time period on the basis of the memory exception logs in the exception logs; based on the address information of the memory error in the abnormal log, counting the running state characteristics of the memory in the equipment; fusing the time sequence change feature and the operation state feature into a memory fault early warning feature; and processing the memory fault early warning characteristics by using an early warning model to obtain memory early warning information of the equipment.

Provided are a method and apparatus for generating a pseudo-random number which is unpredictable and which has a small memory work area, and also a method and apparatus for encrypting data, for each predetermined amount, based on the generated pseudo-random number. A seed is divided into a predetermined number of blocks, new blocks are created by calculating an exclusive-OR of the blocks being different from each other, and the new blocks are merged to generate a new pseudo-random number. The data is encrypted for each determined amount based on the generated pseudo-random number. At this time, a pseudo-random number to be used for the succeeding encryption is generated by using as a seed a predetermined amount of random number of the pseudo-random number used for the preceding encryption of the predetermined amount of data.

The invention discloses a large-scale crowd behavior evolution analysis method based on map-reduce and multi-agent models. The method is achieved through a map-reduce programming model, and simulation operation is achieved through data processing operation; by converting agent information in multi-agent crowd simulation into entries of a key value and attribute value list and by achieving logical judgment decision and status update of agents through map and reduce operations, large-scale crowd simulation is converted into data processing operation in a key value and attribute value list mode. The method is achieved on clusters based on an ApacheHadoop frame. It is proved through tests that the simulation crowds produced through the simulation method are in accordance with existing serialization simulation results in subsection and morphology; according to the method, the scale of the crowds capable of being simulated is large, the operation speed is high, and occupation of a memory working set is greatly reduced.

The invention provides a power saving method of a dynamic memory under read operation and a column selection signal driving circuit of the dynamic memory. The power saving method comprises the following steps of: an amplification enabling signal of a second-stage sensitive amplifier or an equalizing signal of the second-stage sensitive amplifier is high, and the second-stage sensitive amplifier in the dynamic memory works, a switch between a low closing bit line and partial data lines is turned off according to a column selection signal. By the power saving method, the problem of waste of electric energy during read operation of the conventional dynamic memory is solved, and the power consumption of the dynamic memory can be effectively reduced.

The invention discloses a voltage stabilizer circuit applied to a three-dimensional memory and the three-dimensional memory. The voltage stabilizer circuit applied to the three-dimensional memory is composed of an amplification module, a first transistor, a first capacitor and a feedback voltage division module, the amplification module is used for carrying out primary amplification on voltage toobtain differential amplification voltage, and the differential amplification voltage is subjected to secondary amplification of the first transistor to form output voltage to be output; An isolationunit is arranged in the amplification module; Therefore, the voltage stabilizer circuit applied to the three-dimensional memory works at high frequency; the condition that the source end of the firsttransistor is short-circuited to the gate end of the first transistor to form a diode connection structure can be avoided; Therefore, the condition that the power supply noise for providing the working voltage is directly output by the diode connection structure through the diode connection structure is avoided, the power supply noise can be filtered by the isolation unit and the first transistor,and the power supply rejection ratio of the voltage stabilizer circuit is improved.

An image processing apparatus including a first memory which stores data indicating working contents concerning image processing, a connection unit communicatably connected to an external apparatus having a second memory which backs up the data indicating the working contents to be stored in the first memory, a backup unit configured to back up the data indicating the working contents to be stored in the first memory by the second memory, and a processing unit configured to perform working concerning the image processing using the second memory in a case where it is not possible to perform the working using the first memory.

The invention relates to a protective device for preventing a static memory from being broken by a low temperature. The system includes a static memory work device and a protective system, and the related protective system comprises a temperature sensor and a threshold trigger. The temperature sensor is placed near the static memory, and when a measured temperature reaches a set threshold value, the threshold trigger triggers the static memory work device to perform a static memory delete program.

The present invention belongs to the network communication technology field, and especially relates to a single sign-on authentication method and system. The method comprises: receiving an authentication request including original bill information; determining whether the sign-on is performed for the first time or not according to the original bill information, and if sign-on is performed for the first time, executing a third step, or else, executing a fourth step; sending a sign-on instruction to a user terminal, generating a user information table when the sign-on information sent by the user terminal is correct, determining whether there is an authentication to access a business terminal or not, if there is the authentication to access a business terminal, generating a first authentication result to feed back to the business terminal, or else, stopping the steps; determining whether the user terminal has an authentication to access the business terminal or not, if the user terminal has the authentication to access the business terminal, executing a fifth step; and according to the previous business information table, the current business information table and the user information table, determining whether the safety domain information is the same or not, and generating a second authentication result to the business terminal according to a determination result. The single sign-on authentication method and system mitigate user's memory work, and are high in flexibility, high in safety and simple in authentication process.

The invention discloses a double-memory display device for an automatic protection system of a train. The device comprises a bottom board, a logic control unit, a button and an auxiliary memory. The bottom board further comprises a CPU card, a switch and a main memory connected with the CPU card, and the CPU card further comprises an interface unit. The auxiliary memory is connected with the CPU card through the interface unit, and the button is used for performing gate control over the switch of a power supply for controlling the auxiliary memory through the logic control unit. The main memory and the auxiliary memory are respectively provided with a software system for guaranteeing normal operation of the display device. When the main memory works normally, the system is started from the main memory; when the main memory has a fault, the auxiliary memory is started through the button, and the system is started from the auxiliary memory. The technical problem that a locomotive cannot run because of problems of a memory of an existing display device can be solved, and accidents seriously affecting railway operation are effectively avoided.

This invention provides a method to realize the data interchange between the walk computer and computer with two working modes, that are normal mode and portable memory working mode. When the USB driving program is in normal mode, then the walk computer is connected with the computer through software ACTIVE and SYNC for data exchange. When USB driving program is in portable memory working mode, then the walk computer is connected with the computer through portable memory USB driving program for data exchange between the portable memory device and computer.