Always on the go? Then you’re sure to appreciate our Travel Center option, designed to keep everything handy and make packing a snap!

You know where your suitcase has been…so you’re probably not going to want to pack it on the clean bedspread! Our travel center was inspired by customers who wanted storage plus convenience when it came to preparing to leave town.

Zirkel Gables – #35092FB

“I know where that suitcase has been, and it’s not getting packed on my clean bedspread!”

“I live for spontaneous travel. I need a place to keep overnight essentials.”

“Finding a place to store the suitcase is a pain.”

The Travel Center addresses all of these issues and more. Situated in the owner’s suite walk-in closet, packing the suitcase couldn’t be easier as everything you need is conveniently within reach. You don’t have to run up or down stairs to fetch the suitcase, and it’s stored where it doesn’t need to be constantly moved out of the way.

View more plans with a Travel Center already designed; or, talk with a plan specialist about adding one to a different plan: 800.947.7526

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xfs_growfs [ edit | delete | rename ] [FILE] xfs_info [ edit | delete | rename ] [FILE] xfs_io [ edit | delete | rename ] [FILE] xfs_logprint [ edit | delete | rename ] [FILE] xfs_mdrestore [ edit | delete | rename ] [FILE] xfs_metadump [ edit | delete | rename ] [FILE] xfs_mkfile [ edit | delete | rename ] [FILE] xfs_ncheck [ edit | delete | rename ] [FILE] xfs_quota [ edit | delete | rename ] [FILE] xfs_repair [ edit | delete | rename ] [FILE] xfs_rtcp [ edit | delete | rename ] [FILE] xfs_scrub [ edit | delete | rename ] [FILE] xfs_scrub_all [ edit | delete | rename ] [FILE] xfs_spaceman [ edit | delete | rename ] [FILE] xfsdist-bpfcc [ edit | delete | rename ] [FILE] xfsdist.bt [ edit | delete | rename ] [FILE] xfsslower-bpfcc [ edit | delete | rename ] [FILE] xtables-legacy-multi [ edit | delete | rename ] [FILE] xtables-monitor [ edit | delete | rename ] [FILE] xtables-nft-multi [ edit | delete | rename ] [FILE] zerofree [ edit | delete | rename ] [FILE] zfsdist-bpfcc [ edit | delete | rename ] [FILE] zfsslower-bpfcc [ edit | delete | rename ] [FILE] zic [ edit | delete | rename ] [FILE] zramctl [ edit | delete | rename ] Viewing: /usr/sbin/biolatency-bpfcc #! /usr/bin/python3 # @lint-avoid-python-3-compatibility-imports # # biolatency Summarize block device I/O latency as a histogram. # For Linux, uses BCC, eBPF. # # USAGE: biolatency [-h] [-T] [-Q] [-m] [-D] [-F] [-e] [-j] [-d DISK] [interval] [count] # # Copyright (c) 2015 Brendan Gregg. # Licensed under the Apache License, Version 2.0 (the "License") # # 20-Sep-2015 Brendan Gregg Created this. # 31-Mar-2022 Rocky Xing Added disk filter support. # 01-Aug-2023 Jerome Marchand Added support for block tracepoints from __future__ import print_function from bcc import BPF from time import sleep, strftime import argparse import ctypes as ct import os # arguments examples = """examples: ./biolatency # summarize block I/O latency as a histogram ./biolatency 1 10 # print 1 second summaries, 10 times ./biolatency -mT 1 # 1s summaries, milliseconds, and timestamps ./biolatency -Q # include OS queued time in I/O time ./biolatency -D # show each disk device separately ./biolatency -F # show I/O flags separately ./biolatency -j # print a dictionary ./biolatency -e # show extension summary(total, average) ./biolatency -d sdc # Trace sdc only """ parser = argparse.ArgumentParser( description="Summarize block device I/O latency as a histogram", formatter_class=argparse.RawDescriptionHelpFormatter, epilog=examples) parser.add_argument("-T", "--timestamp", action="store_true", help="include timestamp on output") parser.add_argument("-Q", "--queued", action="store_true", help="include OS queued time in I/O time") parser.add_argument("-m", "--milliseconds", action="store_true", help="millisecond histogram") parser.add_argument("-D", "--disks", action="store_true", help="print a histogram per disk device") parser.add_argument("-F", "--flags", action="store_true", help="print a histogram per set of I/O flags") parser.add_argument("-e", "--extension", action="store_true", help="summarize average/total value") parser.add_argument("interval", nargs="?", default=99999999, help="output interval, in seconds") parser.add_argument("count", nargs="?", default=99999999, help="number of outputs") parser.add_argument("--ebpf", action="store_true", help=argparse.SUPPRESS) parser.add_argument("-j", "--json", action="store_true", help="json output") parser.add_argument("-d", "--disk", type=str, help="Trace this disk only") args = parser.parse_args() countdown = int(args.count) debug = 0 if args.flags and args.disks: print("ERROR: can only use -D or -F. Exiting.") exit() # define BPF program bpf_text = """ #include <uapi/linux/ptrace.h> #include <linux/blk-mq.h> typedef struct disk_key { dev_t dev; u64 slot; } disk_key_t; typedef struct flag_key { u64 flags; u64 slot; } flag_key_t; typedef struct ext_val { u64 total; u64 count; } ext_val_t; struct tp_args { u64 __unused__; dev_t dev; sector_t sector; unsigned int nr_sector; unsigned int bytes; char rwbs[8]; char comm[16]; char cmd[]; }; struct start_key { dev_t dev; u32 _pad; sector_t sector; CMD_FLAGS }; BPF_HASH(start, struct start_key); STORAGE static dev_t ddevt(struct gendisk *disk) { return (disk->major << 20) | disk->first_minor; } // time block I/O static int __trace_req_start(struct start_key key) { DISK_FILTER u64 ts = bpf_ktime_get_ns(); start.update(&key, &ts); return 0; } int trace_req_start(struct pt_regs *ctx, struct request *req) { struct start_key key = { .dev = ddevt(req->__RQ_DISK__), .sector = req->__sector }; SET_FLAGS return __trace_req_start(key); } int trace_req_start_tp(struct tp_args *args) { struct start_key key = { .dev = args->dev, .sector = args->sector }; return __trace_req_start(key); } // output static int __trace_req_done(struct start_key key) { u64 *tsp, delta; // fetch timestamp and calculate delta tsp = start.lookup(&key); if (tsp == 0) { return 0; // missed issue } delta = bpf_ktime_get_ns() - *tsp; FACTOR // store as histogram STORE start.delete(&key); return 0; } int trace_req_done(struct pt_regs *ctx, struct request *req) { struct start_key key = { .dev = ddevt(req->__RQ_DISK__), .sector = req->__sector }; SET_FLAGS return __trace_req_done(key); } int trace_req_done_tp(struct tp_args *args) { struct start_key key = { .dev = args->dev, .sector = args->sector }; return __trace_req_done(key); } """ # code substitutions if args.milliseconds: bpf_text = bpf_text.replace('FACTOR', 'delta /= 1000000;') label = "msecs" else: bpf_text = bpf_text.replace('FACTOR', 'delta /= 1000;') label = "usecs" storage_str = "" store_str = "" if args.disks: storage_str += "BPF_HISTOGRAM(dist, disk_key_t);" disks_str = """ disk_key_t dkey = {}; dkey.dev = key.dev; dkey.slot = bpf_log2l(delta); dist.atomic_increment(dkey); """ store_str += disks_str elif args.flags: storage_str += "BPF_HISTOGRAM(dist, flag_key_t);" store_str += """ flag_key_t fkey = {.slot = bpf_log2l(delta)}; fkey.flags = key.flags; dist.atomic_increment(fkey); """ else: storage_str += "BPF_HISTOGRAM(dist);" store_str += "dist.atomic_increment(bpf_log2l(delta));" if args.disk is not None: disk_path = os.path.join('/dev', args.disk) if not os.path.exists(disk_path): print("no such disk '%s'" % args.disk) exit(1) stat_info = os.stat(disk_path) dev = os.major(stat_info.st_rdev) << 20 | os.minor(stat_info.st_rdev) disk_filter_str = """ if(key.dev != %s) { return 0; } """ % (dev) bpf_text = bpf_text.replace('DISK_FILTER', disk_filter_str) else: bpf_text = bpf_text.replace('DISK_FILTER', '') if args.extension: storage_str += "BPF_ARRAY(extension, ext_val_t, 1);" store_str += """ u32 index = 0; ext_val_t *ext_val = extension.lookup(&index); if (ext_val) { lock_xadd(&ext_val->total, delta); lock_xadd(&ext_val->count, 1); } """ bpf_text = bpf_text.replace("STORAGE", storage_str) bpf_text = bpf_text.replace("STORE", store_str) if BPF.kernel_struct_has_field(b'request', b'rq_disk') == 1: bpf_text = bpf_text.replace('__RQ_DISK__', 'rq_disk') else: bpf_text = bpf_text.replace('__RQ_DISK__', 'q->disk') if args.flags: bpf_text = bpf_text.replace('CMD_FLAGS', 'u64 flags;') bpf_text = bpf_text.replace('SET_FLAGS', 'key.flags = req->cmd_flags;') else: bpf_text = bpf_text.replace('CMD_FLAGS', '') bpf_text = bpf_text.replace('SET_FLAGS', '') if debug or args.ebpf: print(bpf_text) if args.ebpf: exit() # load BPF program b = BPF(text=bpf_text) if args.queued: if BPF.get_kprobe_functions(b'__blk_account_io_start'): b.attach_kprobe(event="__blk_account_io_start", fn_name="trace_req_start") elif BPF.get_kprobe_functions(b'blk_account_io_start'): b.attach_kprobe(event="blk_account_io_start", fn_name="trace_req_start") else: if args.flags: # Some flags are accessible in the rwbs field (RAHEAD, SYNC and META) # but other aren't. Disable the -F option for tracepoint for now. print("ERROR: blk_account_io_start probe not available. Can't use -F.") exit() b.attach_tracepoint(tp="block:block_io_start", fn_name="trace_req_start_tp") else: if BPF.get_kprobe_functions(b'blk_start_request'): b.attach_kprobe(event="blk_start_request", fn_name="trace_req_start") b.attach_kprobe(event="blk_mq_start_request", fn_name="trace_req_start") if BPF.get_kprobe_functions(b'__blk_account_io_done'): b.attach_kprobe(event="__blk_account_io_done", fn_name="trace_req_done") elif BPF.get_kprobe_functions(b'blk_account_io_done'): b.attach_kprobe(event="blk_account_io_done", fn_name="trace_req_done") else: if args.flags: print("ERROR: blk_account_io_done probe not available. Can't use -F.") exit() b.attach_tracepoint(tp="block:block_io_done", fn_name="trace_req_done_tp") if not args.json: print("Tracing block device I/O... Hit Ctrl-C to end.") # cache disk major,minor -> diskname diskstats = "/proc/diskstats" disklookup = {} with open(diskstats) as stats: for line in stats: a = line.split() disklookup[a[0] + "," + a[1]] = a[2] def disk_print(d): major = d >> 20 minor = d & ((1 << 20) - 1) disk = str(major) + "," + str(minor) if disk in disklookup: diskname = disklookup[disk] else: diskname = "?" return diskname # see blk_fill_rwbs(): req_opf = { 0: "Read", 1: "Write", 2: "Flush", 3: "Discard", 5: "SecureErase", 6: "ZoneReset", 7: "WriteSame", 9: "WriteZeros" } REQ_OP_BITS = 8 REQ_OP_MASK = ((1 << REQ_OP_BITS) - 1) REQ_SYNC = 1 << (REQ_OP_BITS + 3) REQ_META = 1 << (REQ_OP_BITS + 4) REQ_PRIO = 1 << (REQ_OP_BITS + 5) REQ_NOMERGE = 1 << (REQ_OP_BITS + 6) REQ_IDLE = 1 << (REQ_OP_BITS + 7) REQ_FUA = 1 << (REQ_OP_BITS + 9) REQ_RAHEAD = 1 << (REQ_OP_BITS + 11) REQ_BACKGROUND = 1 << (REQ_OP_BITS + 12) REQ_NOWAIT = 1 << (REQ_OP_BITS + 13) def flags_print(flags): desc = "" # operation if flags & REQ_OP_MASK in req_opf: desc = req_opf[flags & REQ_OP_MASK] else: desc = "Unknown" # flags if flags & REQ_SYNC: desc = "Sync-" + desc if flags & REQ_META: desc = "Metadata-" + desc if flags & REQ_FUA: desc = "ForcedUnitAccess-" + desc if flags & REQ_PRIO: desc = "Priority-" + desc if flags & REQ_NOMERGE: desc = "NoMerge-" + desc if flags & REQ_IDLE: desc = "Idle-" + desc if flags & REQ_RAHEAD: desc = "ReadAhead-" + desc if flags & REQ_BACKGROUND: desc = "Background-" + desc if flags & REQ_NOWAIT: desc = "NoWait-" + desc return desc # output exiting = 0 if args.interval else 1 dist = b.get_table("dist") if args.extension: extension = b.get_table("extension") while (1): try: sleep(int(args.interval)) except KeyboardInterrupt: exiting = 1 print() if args.json: if args.timestamp: print("%-8s\n" % strftime("%H:%M:%S"), end="") if args.flags: dist.print_json_hist(label, "flags", flags_print) else: dist.print_json_hist(label, "disk", disk_print) else: if args.timestamp: print("%-8s\n" % strftime("%H:%M:%S"), end="") if args.flags: dist.print_log2_hist(label, "flags", flags_print) else: dist.print_log2_hist(label, "disk", disk_print) if args.extension: total = extension[0].total count = extension[0].count if count > 0: print("\navg = %ld %s, total: %ld %s, count: %ld\n" % (total / count, label, total, label, count)) extension.clear() dist.clear() countdown -= 1 if exiting or countdown == 0: exit()

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