A distributed computing environment and associated method for monitoring a queue-based messaging system. The queue-based messaging system controls the exchange of messages between a server process and client process applications. A messaging application residing at the server computer platform and forming part of the queue-based messaging system manages a plurality of trigger-initiated local queues, each associated with one of the plurality of client process applications and having queue depth, trigger enable, get enable and put enable attributes. A monitoring tool residing on the server computer platform acquires a value for the queue depth, trigger enable, put enable and get enable attributes for a plurality of trigger-initiated local queues and generally simultaneously displays, on a user interface coupled to the server computer platform, the value for the queue depth, trigger enable, put enable and get enable attributes for each one of the plurality of trigger-initiated local queues.

Method and apparatus for network-level monitoring of queue-based messaging systems

Described embodiments provide logical-to-physical address translation for data stored on a storage device having sectors organized into blocks and superblocks. A flash translation layer maps a physical address in the storage device to a logical sector address. The logical sector address corresponds to mapping data that includes i) a page index, ii) a block index, and iii) a superblock number. The mapping data is stored in at least one summary page corresponding to the superblock containing the physical address. A block index and a page index of a next empty page in the superblock are stored in a page global directory corresponding to the superblock. A block index and a page index of the at least one summary page and the at least one active block table for each superblock are stored in at least one active block table of the storage device.

Logical-to-Physical Address Translation for Solid State Disks

Each of a plurality of thread boundaries comprises functionality to be performed for a given event by a single thread. A plurality of queues through which events may be routed may be coupled to the thread boundaries. A plurality of tasks may be configured in a defined relationship, each task being associated with a thread boundary and comprising a unit of code for performing a specific function. Resources may be allocated to thread boundaries based on queue depth.

Modular event-driven processing

Described embodiments provide reconstruction of logical-to-physical address mapping data for one or more sectors of a storage device at startup of a media controller. The sectors of the storage device are organized into blocks and superblocks and the address mapping data is stored in a volatile memory. At a startup condition of the media controller, a buffer layer module of the media controller allocates space in the volatile memory for one or more logical-to-physical address mapping data structures. A media layer module of the media controller determines a block type of each block of the storage device and places each block of the storage device into corresponding groups based on the determined block type of each block. The one or more blocks of each group are processed, and one or more address mapping data structures for the storage device are constructed in the allocated space in the volatile memory.

Startup reconstruction of logical-to-physical address translation data for solid state disks

Described embodiments provide skip operations for transferring data to or from a plurality of non-contiguous sectors of a solid-state memory. A host layer module sends data to, and receives commands from, a communication link. Received commands are one of read requests or write requests, with commands including i) a starting sector address, ii) a skip mask indicating the span of all sector addresses in the request and the sectors to be transferred, iii) a total number of sectors to be transferred; and, for write requests, iv) the data to be written to the sectors. A buffer stores data for transfer to or from the solid-state memory. A buffer layer module i) manages the buffer, ii) segments the span of the request into a plurality of chunks, and iii) determines, based on the skip mask, a number of chunks to be transferred to or from the solid-state memory.

Skip Operations for Solid State Disks

A computer implemented method for monitoring up-stream and down-stream software applications in a message queuing transmission system. The transmission system comprises at least one processing task that is able to read a plurality of incoming messages from at least one input queue and to write a plurality of outgoing messages into at least one output queue. The method allows for determining the number of messages in each of the input queues and the number of messages in each of the output queues, for determining the activation status of the processing task, and for gathering the results to display on a task monitor screen. The depth and status information are regularly refreshed.

Montero Sanchez Angel L

Papers

System and method for monitoring software queuing applications