●
To change dynamically (example changes estale_max_retry to 40 for
illustration only):
hostname#
echo 40 > /proc/fs/dvs/estale_timeout_secs
estale_timeout_secs
Controls the time to wait between retries of an operation after it returns ESTALE.
●
Default value: 300 seconds
●
To view read-only:
cat
/sys/module/dvsproc/parameters/estale_timeout_secs
●
To change prior to boot, add these lines to
<nid_of_choice>
/etc/modprobe.d/dvs-local.conf
:
# Set the time to wait between retries of an
# operation that returns ESTALE
options dvsproc estale_timeout_secs=
●
To change dynamically (example changes estale_timeout_secs to 400 for
illustration only):
hostname#
echo 400 > /proc/fs/dvs/estale_timeout_secs
kdwfs_instance_info
Contains the following fields, which are parameters for the DataWarp thread pool
in the DVS IPC layer.
Table 17. kdwfs_instance_info Field Definitions
Field
Definition
thread_min
Number of threads created at startup.
thread_max
Maximum number of persistent threads.
thread_limit
Maximum number of valid threads that DVS IPC
allows to exist at one time. DVS IPC will
dynamically scale up the number of threads to this
number as the load increases.
thread_concurrent_creates
Maximum number of IPC threads that can be in the
process of forking a new thread.
thread_nice
Nice value for the threads.
single_msg_queue
Disables/enables fairness of service. Setting to 1
disables fairness of service by processing incoming
requests with a FIFO method. Setting to 0 (default)
groups requests into different queues (qhdrs)
based on apid, and round-robbins the queues to
maintain quality of service (QOS) among jobs.
init_free_qhdrs
Low water mark for the pool of unused qhdrs.
When the pool falls below this number, more are
allocated. Used only if single_msg_queue = 0.
Cray DVS
S3016
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