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clh: Expose disk rate limiter config

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With everything implemented, let's now expose the disk rate limiter
configuration options in the Cloud Hypervisor configuration file.

Fixes: #4139

Signed-off-by: Fabiano Fidêncio <fabiano.fidencio@intel.com>
This commit is contained in:
Fabiano Fidêncio 2022-04-25 16:53:58 +02:00
parent 7580bb5a78
commit b6467ddd73
1 changed files with 36 additions and 0 deletions
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36
src/runtime/config/configuration-clh.toml.in
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@ -215,6 +215,42 @@ block_device_driver = "virtio-blk"
# This is *optional* and only takes effect if net_rate_limiter_bw_max_rate is # This is *optional* and only takes effect if net_rate_limiter_bw_max_rate is
# set to a non zero value. # set to a non zero value.
#net_rate_limiter_ops_one_time_burst = 0 #net_rate_limiter_ops_one_time_burst = 0
#
# These options are related to disk rate limiter at the VMM level, and are
# based on the Cloud Hypervisor I/O throttling. Those are disabled by default
# and we strongly advise users to refer the Cloud Hypervisor official
# documentation for a better understanding of its internals:
# https://github.com/cloud-hypervisor/cloud-hypervisor/blob/main/docs/io_throttling.md
#
# Bandwidth rate limiter options
#
# disk_rate_limiter_bw_max_rate controls disk I/O bandwidth (size in bits/sec
# for SB/VM).
# The same value is used for inbound and outbound bandwidth.
# Default 0-sized value means unlimited rate.
#disk_rate_limiter_bw_max_rate = 0
#
# disk_rate_limiter_bw_one_time_burst increases the initial max rate and this
# initial extra credit does *NOT* affect the overall limit and can be used for
# an *initial* burst of data.
# This is *optional* and only takes effect if disk_rate_limiter_bw_max_rate is
# set to a non zero value.
#disk_rate_limiter_bw_one_time_burst = 0
#
# Operation rate limiter options
#
# disk_rate_limiter_ops_max_rate controls disk I/O bandwidth (size in ops/sec
# for SB/VM).
# The same value is used for inbound and outbound bandwidth.
# Default 0-sized value means unlimited rate.
#disk_rate_limiter_ops_max_rate = 0
#
# disk_rate_limiter_ops_one_time_burst increases the initial max rate and this
# initial extra credit does *NOT* affect the overall limit and can be used for
# an *initial* burst of data.
# This is *optional* and only takes effect if disk_rate_limiter_bw_max_rate is
# set to a non zero value.
#disk_rate_limiter_ops_one_time_burst = 0
[agent.@PROJECT_TYPE@] [agent.@PROJECT_TYPE@]
# If enabled, make the agent display debug-level messages. # If enabled, make the agent display debug-level messages.