Keyword Analysis & Research: pmemblk
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libpmemblk - pmem.io: Home
The pmemblk_create() function creates a block memory pool with the given total poolsize divided up into as many elements of size bsize as will fit in the pool. Since the transactional nature of a block memory pool requires some space overhead in the memory pool, the resulting number of available blocks is less than poolsize / bsize, and is made available to the caller via the pmemblk_nblock ...
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fio/pmemblk.c at master · axboe/fio · GitHub
* thread must be set to 1 for pmemblk as multiple processes cannot * open the same block pool file. * * iodepth should be set to 1 as pmemblk is always synchronous. * Use numjobs to scale up. * * direct=1 is implied as pmemblk is always direct. A warning message * is printed if this is not specified. *
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pmemblk_create man page - libpmemblk - Library Functions
The pmemblk_create () function creates a block memory pool with the given total poolsize, divided into as many elements of size bsize as will fit in the pool. Since the transactional nature of a block memory pool requires some space overhead in the memory pool, the resulting number of available blocks is less than poolsize / bsize, and is made ...
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fio/pmemblk.fio at master · axboe/fio · GitHub
# The pmemblk engine does IO to files in a DAX-mounted filesystem. # The filesystem should be created on an NVDIMM (e.g /dev/pmem0) # and then mounted with the '-o dax' option. Note that the engine # accesses the underlying NVDIMM directly, bypassing the kernel block # layer, so the usual filesystem/disk performance monitoring tools such
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pmem.io: PMDK man page
The pmemblk_bsize () function returns the block size of the specified block memory pool, that is, the value which was passed as bsize to pmemblk_createU ()/ pmemblk_createW (). pbp must be a block memory pool handle as returned by pmemblk_open (3) or pmemblk_create (3). The pmemblk_nblock () function returns the usable space in the block memory ...
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Ubuntu Manpage: pmemblk_ctl_get(), pmemblk_ctl_set
The pmemblk_ctl_get(), pmemblk_ctl_set() and pmemblk_ctl_exec() functions provide a uniform interface for querying and modifying the internal behavior of libpmemblk(7) through the control (CTL) namespace. The name argument ...
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Example of FIO workload for pmemblk engine · GitHub
Example of FIO workload for pmemblk engine. # numactl -N 0 fio PmemblkSeqR.fio # it binds this FIO workload to CPU 0 only, according to /dev/pmem6 socket's number. # Preparing namespace with commands: numjobs=18 # depending on CPU core count more can be …
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Code Sample: Create a C Persistent Memory “Hello World
Jul 18, 2019 · const void *buf - Source pointer to a block where the size should be the size we used with pmemblk_create (in this case ELEMENT_SIZE) to be copied to the memory pool. long long blockno - Block number zero is the destination block in the memory pool pbp where the data will be written.
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Recovery and Fault-Tolerance for Persistent Memory …
[Y/n] Y setting pool_hdr.checksum to 0xadbac6304e1ae81a checking pmemblk header pmemblk header correct checking BTT Info headers arena 0: BTT Info header checksum correct checking BTT Map and Flog arena 0: checking BTT Map and Flog /mnt/pmem/poolfile: repaired In this case, it seems that only the checksum was incorrect. ...
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pmempool-info: Print basic information about Persistent
Options for PMEMBLK: By default the info command displays the pmem blk header and BTT (Block Translation Table) Info header in case of pmem blk pool type. To display BTT Map and/or BTT FLOG (Free List and Log) use -m and -g options respectively or increase verbosity level. In order to display BTT Info header backup use -B option. -m, --map
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