root / xseg / peers / user / bench-xseg.h @ 911fec92
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/*
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* Copyright 2012 GRNET S.A. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* 1. Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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* 2. Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* The views and conclusions contained in the software and
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* documentation are those of the authors and should not be
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* interpreted as representing official policies, either expressed
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* or implied, of GRNET S.A.
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*/
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#include <bench-lfsr.h> |
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/*
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* If CLOCK_MONOTONIC_RAW is not defined in our system, use CLOCK_MONOTONIC
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* instead. CLOCK_MONOTONIC_RAW is preferred since we are guaranteed that the
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* clock won't skew.
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*/
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#ifdef CLOCK_MONOTONIC_RAW
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#define CLOCK_BENCH CLOCK_MONOTONIC_RAW
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#else
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#define CLOCK_BENCH CLOCK_MONOTONIC
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#endif
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#define MAX_ARG_LEN 10 |
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/*
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* Pattern type occupies 1st flag bit.
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* If 1, it's sequential, if 0, it's random.
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*/
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#define PATTERN_FLAG_POS 0 |
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#define PATTERN_BITMASK 1 |
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#define PATTERN_SEQ 0 |
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#define PATTERN_RAND 1 |
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/*
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* Verify mode occupies 2nd and 3rd flag bit.
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* If 01, it uses metadata for verification, if 11 it writes pseudorandom nums
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* in chunk's memory range and if 00, it's off.
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*/
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#define VERIFY_FLAG_POS 1 |
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#define VERIFY_BITMASK 3 /* i.e. "11" in binary form */ |
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#define VERIFY_NO 0 |
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#define VERIFY_META 1 |
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#define VERIFY_FULL 2 |
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/* Timer insanity occupies 4th and 5th flag bit */
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#define INSANITY_FLAG_POS 3 |
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#define INSANITY_BITMASK 3 /* i.e. "11" in binary form */ |
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#define INSANITY_SANE 0 |
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#define INSANITY_ECCENTRIC 1 |
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#define INSANITY_MANIC 2 |
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#define INSANITY_PARANOID 3 |
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/*
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* Current bench flags representation:
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* 64 7 6 5 4 3 2 1 : bits
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* ...0 0 0 0 0 0 0
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* |____||____||_|
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* ^ ^ ^
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* | | |
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* insanity | pattern
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* verify
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*/
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/* Add flag bit according to its position */
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#define SET_FLAG(__ftype, __flag, __val) \
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__flag |= __val << __ftype##_FLAG_POS; |
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/* Apply bitmask to flags, shift result to the right to get correct value */
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#define GET_FLAG(__ftype, __flag) \
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(__flag & (__ftype##_BITMASK << __ftype##_FLAG_POS)) >> __ftype##_FLAG_POS |
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/*
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* The benchark ID (IDLEN) is global for the test, calculated once and is a
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* string of the following form: {"bench-" + 9-digit number + "\0"}.
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* The target string (TARGETLEN) is per object, concatenated with the string
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* above and is of the following form: {"-" +16-digit number + "\0"}.
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*/
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#define IDLEN 16 |
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#define TARGETLEN (IDLEN + 17) |
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extern char global_id[IDLEN]; |
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struct bench {
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uint64_t to; //Total number of objects (not for read/write)
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uint64_t ts; //Total I/O size
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uint64_t os; //Object size
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uint64_t bs; //Block size
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uint32_t iodepth; //Num of in-flight xseg reqs
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xport dst_port; |
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xport src_port; |
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uint32_t op; //xseg operation
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uint64_t flags; |
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struct peerd *peer;
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struct req_status *status;
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struct bench_lfsr *lfsr;
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struct timer *total_tm; //Total time for benchmark |
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struct timer *get_tm; //Time for xseg_get_request |
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struct timer *sub_tm; //Time for xseg_submit_request |
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struct timer *rec_tm; //Time for xseg_receive_request |
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}; |
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struct req_status {
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uint64_t max; /* Max requests for benchmark */
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uint64_t submitted; |
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uint64_t received; |
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uint64_t corrupted; /* Requests that did not pass verification */
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uint64_t failed; |
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}; |
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/*
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* Custom timespec. Made to calculate variance, where we need the square of a
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* timespec struct. This struct should be more than enough to hold the square
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* of the biggest timespec.
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*/
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struct timespec2 {
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unsigned long tv_sec2; |
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uint64_t tv_nsec2; |
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}; |
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/*
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* struct timer fields
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* ====================
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* completed: number of completed requests
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* start_time: submission time of a request
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* sum: the sum of elapsed times of every completed request
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* sum_sq: the sum of the squares of elapsed times
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* insanity: benchmarking level, higher means that the request associated with
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* this timer is more trivial.
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*/
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struct timer {
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struct timespec sum;
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struct timespec2 sum_sq;
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struct timespec start_time;
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uint64_t completed; |
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int insanity;
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}; |
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struct tm_result {
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unsigned int s; |
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unsigned int ms; |
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unsigned int us; |
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unsigned int ns; |
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}; |
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struct signature {
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uint64_t id; |
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uint64_t object; |
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uint64_t offset; |
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}; |
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int bench_peerd_loop(void *arg); |
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void timer_start(struct bench *prefs, struct timer *sample_req); |
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void timer_stop(struct bench *prefs, struct timer *sample_tm, |
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struct timespec *start);
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int init_timer(struct timer **tm, int insanity); |
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uint64_t str2num(char *str);
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int read_op(char *op); |
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int read_pattern(char *pattern); |
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int read_insanity(char *insanity); |
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int read_verify(char *insanity); |
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void print_res(struct bench *prefs, struct timer *tm, char *type); |
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void print_stats(struct bench *prefs); |
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void create_target(struct bench *prefs, struct xseg_request *req, |
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uint64_t new); |
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void create_chunk(struct bench *prefs, struct xseg_request *req, uint64_t new); |
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int read_chunk(struct bench *prefs, struct xseg_request *req); |
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uint64_t determine_next(struct bench *prefs);
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uint64_t calculate_offset(struct bench *prefs, uint64_t new);
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void create_id(unsigned long seed); |
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