tests/bcache/journal_stress.ktest


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#!/usr/bin/env bash

. $(dirname $(readlink -e ${BASH_SOURCE[0]}))/bcache-test-libs.sh

config-cache 256M,256M
config-tier 256M,256M,256M,256M,256M,256M,256M,256M,256M,256M

config-bucket-size 64k
config-block-size 4k
config-volume 1900M
#config-bcache-sysfs btree_flush_delay 0

config-timeout $(stress_timeout)

test_main()
{
    setup_tracing 'bcache:*'

    setup_bcache
    run_antagonist

    (
	while true; do
	    # Lots of small journal entries
	    echo 0 > /sys/fs/bcache/*/journal_delay_ms
	    sleep 5
	    # Let the journal entries fill up
	    echo 10000 > /sys/fs/bcache/*/journal_delay_ms
	    sleep 5
	done
    ) &

    run_bcache_stress
    stop_bcache
}