ibp_perf

Synopsis

ibp_perf [-d|-dd] [-network_chksum type blocksize] [-disk_chksum type blocksize] [-validate] [-config ibp.cfg] [-phoebus gateway_list] [-tcpsize tcpbufsize] [-duration duration] [-sync] [-alias] [-progress] [-random] n_depots depot1 port1 resource_id1 ... depotN portN ridN nthreads ibp_timeout alias_createremove_count createremove_count readwrite_count readwrite_alloc_size rw_block_size read_mix_fraction smallio_count small_min_size small_max_size small_read_fraction

Description

This tool is designed to benchmark a collection of depots and a single client by doing low-level allocation creation and data transfers. Some test can be skipped if the count is set to 0.

Options

-d

Enable minimal debug output

-dd

Enable FULL debug output

-network_chksum type blocksize

Enable network checksumming for transfers. type should be SHA256, SHA512, SHA1, or MD5. blocksize determines how many bytes to send between checksums in kbytes.

-disk_chksum type blocksize

Use block level checksum allocations. type should be NONE, SHA256, SHA512, SHA1, or MD5. If NONE is specified it will force the creation of allocations without checksums. If the option is not specified then the resources default options are used. blocksize determines how many bytes to send between checksums in kbytes.

-validate

Validate disk chksum data. Option is ignored unless disk chksumming is enabled.

-config ibp.cfg

Use the IBP configuration defined in given file. nthreads overrides value in config file unless -1.

-phoebus ppath

Use Phoebus protocol for data transfers. The Phoebus path si a comma separated List of phoebus hosts/ports, eg. gateway1/1234,gateway2/4321.

-tcpsize tcpbufsize

Use this value, in KB, for the TCP send/recv buffer sizes.

-duration duration

Allocation duration in sec. Needs to be big enough to last the entire run. The default duration is 900 sec.

-sync

Use the synchronous protocol. Default uses asynchrounous transfers.

-alias

Use alias allocations for all I/O operations.

-progress

Print completion progress.

-random

Initializes the transfer buffers with quasi-random data.

n_depots

Number of depot tuplets defined next

depot port RID

Depot tuple comprised of the depot hostname, port and resource to use. A RID of 0 lets the depot pick a resource.

nthreads

Max Number of simultaneous threads to use. Use -1 for defaults or value in ibp.cfg

ibp_timeout

Timeout(sec) for each IBP copmmand

alias_createremove_count

Number of 0 byte files to create and remove using alias allocations. Set this value to 0 to skip the test.

createremove_count

Number of 0 byte files to create and remove to test metadata performance. Set this value to 0 to skip the test.

readwrite_count

Number of files to write sequentially then read sequentially. Set this value to 0 to skip the test.

readwrite_alloc_size

Size of each allocation in KB for sequential and random tests

rw_block_size

Size of each R/W operation in KB for sequential and random tests

read_mix_fraction

Fraction of Random I/O operations that are READS

smallio_count

Number of random small I/O operations. Set this value to 0 to skip the test.

small_min_size

Minimum size of each small I/O operation(kb)

small_max_size

Max size of each small I/O operation(kb)

small_read_fraction

Fraction of small random I/O operations that are READS

See also

ibp_copyperf, ibp_test