#!/bin/ksh -p # # CDDL HEADER START # # The contents of this file are subject to the terms of the # Common Development and Distribution License (the "License"). # You may not use this file except in compliance with the License. # # You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE # or http://www.opensolaris.org/os/licensing. # See the License for the specific language governing permissions # and limitations under the License. # # When distributing Covered Code, include this CDDL HEADER in each # file and include the License file at usr/src/OPENSOLARIS.LICENSE. # If applicable, add the following below this CDDL HEADER, with the # fields enclosed by brackets "[]" replaced with your own identifying # information: Portions Copyright [yyyy] [name of copyright owner] # # CDDL HEADER END # # # Copyright (c) 2017, Lawrence Livermore National Security, LLC. # . $STF_SUITE/include/libtest.shlib . $STF_SUITE/include/math.shlib # # DESCRIPTION: # Ensure stats presented in /proc/spl/kstat/zfs/dbufstats are correct # based on /proc/spl/kstat/zfs/dbufs. # # STRATEGY: # 1. Generate a file with random data in it # 2. Store output from dbufs kstat # 3. Store output from dbufstats kstat # 4. Compare stats presented in dbufstats with stat generated using # dbufstat and the dbufs kstat output # DBUFSTATS_FILE=$(mktemp $TEST_BASE_DIR/dbufstats.out.XXXXXX) DBUFS_FILE=$(mktemp $TEST_BASE_DIR/dbufs.out.XXXXXX) function cleanup { log_must rm -f $TESTDIR/file $DBUFS_FILE $DBUFSTATS_FILE } function testdbufstat # stat_name dbufstat_filter { name=$1 filter="" [[ -n "$2" ]] && filter="-F $2" if is_linux; then from_dbufstat=$(grep -w "$name" "$DBUFSTATS_FILE" | awk '{ print $3 }') else from_dbufstat=$(awk "/dbufstats\.$name:/ { print \$2 }" \ "$DBUFSTATS_FILE") fi from_dbufs=$(dbufstat -bxn -i "$DBUFS_FILE" "$filter" | wc -l) within_tolerance $from_dbufstat $from_dbufs 15 \ || log_fail "Stat $name exceeded tolerance" } verify_runnable "both" log_assert "dbufstats produces correct statistics" log_onexit cleanup log_must file_write -o create -f "$TESTDIR/file" -b 1048576 -c 20 -d R log_must zpool sync log_must eval "kstat dbufs > $DBUFS_FILE" log_must eval "kstat dbufstats '' > $DBUFSTATS_FILE" for level in {0..11}; do testdbufstat "cache_level_$level" "dbc=1,level=$level" done testdbufstat "cache_count" "dbc=1" testdbufstat "hash_elements" "" log_pass "dbufstats produces correct statistics passed"