US 2019/0163635 A1 · DEFERRED METHOD OF ALLOCATING DISK SPACE FOR LIGHTNING SEGMENTS

Abstract

Embodiments are provided for deferring allocation of storage for segments. The method includes receiving, at a first moment in time, a request to allocate a first segment within a memory. Information corresponding to the first segment is stored in a first entry in a hash table, and memory is allocated for the first segment. Information about the first segment is returned to an entity that requested the allocation of the first segment, where the first segment is not allocated auxiliary storage until predefined criteria are satisfied. At a second moment in time, upon receiving an indication to deallocate the first segment, memory corresponding to the first segment is deallocated, where the first segment is never allocated auxiliary storage and the first entry in the hash table is deleted.

Claims20

Dependent claims

A computer-readable storage medium having computer-readable program code embodied therewith, the computer-readable program code executable by one or more computer processors to perform an operation comprising:

receiving, at a first moment in time, a request to allocate a first segment within a memory;
storing information corresponding to the first segment in a first entry in a hash table;
allocating memory for the first segment;
returning information about the first segment to an entity that requested the allocation of the first segment, wherein the first segment is not allocated auxiliary storage until predefined criteria are satisfied;
and
at a second moment in time, upon receiving an indication to deallocate the first segment:
deallocating memory corresponding to the first segment, wherein the first segment is never allocated auxiliary storage;
and
deleting the first entry in the hash table.

6 more elements

A system comprising:

a processor;
and
a computer memory storing a program, which, when executed on the processor, performs an operation comprising:
receiving, at a first moment in time, a request to allocate a first segment within a memory;
storing information corresponding to the first segment in a first entry in a hash table;
allocating memory for the first segment;
returning information about the first segment to an entity that requested the allocation of the first segment, wherein the first segment is not allocated auxiliary storage until predefined criteria are satisfied;
and
at a second moment in time, upon receiving an indication to deallocate the first segment:
deallocating memory corresponding to the first segment, wherein the first segment is never allocated auxiliary storage;
and
deleting the first entry in the hash table.

9 more elements

A method comprising:

receiving, at a first moment in time, a request to allocate a first segment within a memory;
storing information corresponding to the first segment in a first entry in a hash table;
allocating memory for the first segment;
returning information about the first segment to an entity that requested the allocation of the first segment, wherein the first segment is not allocated auxiliary storage until predefined criteria are satisfied;
and
at a second moment in time, upon receiving an indication to deallocate the first segment:
deallocating memory corresponding to the first segment, wherein the first segment is never allocated auxiliary storage;
and
deleting the first entry in the hash table.

6 more elements

Dependencies are inferred from the claim text.

Deferred method of allocating disk space for lightning segments

Life of this patent

Deferred method of allocating disk space for lightning segments

Life of this patent

Abstract

Claims20