root / xseg / peers / user / bench-xseg.c @ 48a66f3b
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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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#define _GNU_SOURCE
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <unistd.h> |
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#include <sys/syscall.h> |
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#include <sys/types.h> |
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#include <pthread.h> |
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#include <xseg/xseg.h> |
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#include <peer.h> |
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#include <time.h> |
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#include <sys/util.h> |
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#include <signal.h> |
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#include <bench-xseg.h> |
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struct timespec delay = {0, 4000000}; |
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void custom_peer_usage()
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{ |
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fprintf(stderr, "Custom peer options: \n"
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" --------------------------------------------\n"
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" -ts | None | Total I/O size\n"
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" -os | 4M | Object size\n"
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" -bs | 4k | Block size\n"
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" -dp | None | Destination port\n"
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" --iodepth | 1 | Number of in-flight I/O requests\n"
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"\n");
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} |
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/*
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* Convert string to size in bytes.
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* If syntax is invalid, return 0. Values such as zero and non-integer
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* multiples of segment's page size should not be accepted.
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*/
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static uint64_t str2num(char *str) |
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{ |
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char *unit;
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uint64_t num; |
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num = strtoll(str, &unit, 10);
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if (strlen(unit) > 1) //Invalid syntax |
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return 0; |
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else if (strlen(unit) < 1) //Plain number in bytes |
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return num;
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switch (*unit) {
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case 'g': |
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case 'G': |
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num *= 1024;
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case 'm': |
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case 'M': |
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num *= 1024;
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case 'k': |
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case 'K': |
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num *= 1024;
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break;
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default:
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num = 0;
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} |
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return num;
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} |
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int custom_peer_init(struct peerd *peer, int argc, char *argv[]) |
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{ |
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struct bench *prefs;
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char total_size[MAX_ARG_LEN + 1]; |
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char object_size[MAX_ARG_LEN + 1]; |
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char block_size[MAX_ARG_LEN + 1]; |
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struct xseg *xseg = peer->xseg;
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unsigned int xseg_page_size = 1 << xseg->config.page_shift; |
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long dst_port = -1; |
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total_size[0] = 0; |
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block_size[0] = 0; |
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object_size[0] = 0; |
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prefs = malloc(sizeof(struct bench)); |
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if (!prefs) {
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perror("malloc");
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return -1; |
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} |
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//Begin reading the benchmark-specific arguments
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BEGIN_READ_ARGS(argc, argv); |
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READ_ARG_STRING("-ts", total_size, MAX_ARG_LEN);
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READ_ARG_STRING("-os", object_size, MAX_ARG_LEN);
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READ_ARG_STRING("-bs", block_size, MAX_ARG_LEN);
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READ_ARG_ULONG("--iodepth", prefs->iodepth);
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READ_ARG_ULONG("-dp", dst_port);
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END_READ_ARGS(); |
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/*************************
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* Check size parameters *
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*************************/
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//Block size (bs): Defaults to 4K.
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//It must be a number followed by one of these characters: [k|K|m|M|g|G].
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//If not, it will be considered as size in bytes.
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//Must be integer multiple of segment's page size (typically 4k).
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if (!block_size[0]) |
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strcpy(block_size,"4k");
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if (!prefs->iodepth)
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prefs->iodepth = 1;
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prefs->bs = str2num(block_size); |
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if (!prefs->bs) {
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XSEGLOG2(&lc, E, "Invalid syntax: %s\n", block_size);
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goto arg_fail;
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} else if (prefs->bs % xseg_page_size) { |
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XSEGLOG2(&lc, E, "Misaligned block size: %s\n", block_size);
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goto arg_fail;
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} |
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//Total I/O size (ts): Must be supplied by user.
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//Must have the same format as "total size"
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//Must be integer multiple of "block size"
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if (!total_size[0]) { |
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XSEGLOG2(&lc, E, "Total I/O size needs to be supplied\n");
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goto arg_fail;
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} |
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prefs->ts = str2num(total_size); |
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if (!prefs->ts) {
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XSEGLOG2(&lc, E, "Invalid syntax: %s\n", total_size);
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goto arg_fail;
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} else if (prefs->ts % prefs->bs) { |
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XSEGLOG2(&lc, E, "Misaligned total I/O size: %s\n", total_size);
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goto arg_fail;
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} else if (prefs->ts > xseg->segment_size) { |
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XSEGLOG2(&lc, E, "Total I/O size exceeds segment size\n", total_size);
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goto arg_fail;
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} |
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//Object size (os): Defaults to 4M.
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//Must have the same format as "total size"
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//Must be integer multiple of "block size"
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if (!object_size[0]) |
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strcpy(object_size,"4M");
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prefs->os = str2num(object_size); |
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if (!prefs->os) {
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XSEGLOG2(&lc, E, "Invalid syntax: %s\n", object_size);
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goto arg_fail;
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} else if (prefs->os % prefs->bs) { |
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XSEGLOG2(&lc, E, "Misaligned object size: %s\n", object_size);
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goto arg_fail;
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} |
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/*************************
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* Check port parameters *
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*************************/
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if (dst_port < 0){ |
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XSEGLOG2(&lc, E, "Destination port needs to be supplied\n");
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goto arg_fail;
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} |
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prefs->src_port = peer->portno_start; //TODO: allow user to change this
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prefs->dst_port = (xport) dst_port; |
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/**************************
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* Customize struct peerd *
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**************************/
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prefs->total_tm = malloc(sizeof(struct timer)); |
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prefs->get_tm = malloc(sizeof(struct timer)); |
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prefs->sub_tm = malloc(sizeof(struct timer)); |
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prefs->rec_tm = malloc(sizeof(struct timer)); |
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if (!prefs->total_tm || !prefs->get_tm || !prefs->sub_tm ||
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!prefs->rec_tm) { |
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perror("malloc");
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return -1; |
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} |
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memset(prefs->total_tm, 0, sizeof(struct timer)); |
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memset(prefs->get_tm, 0, sizeof(struct timer)); |
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memset(prefs->sub_tm, 0, sizeof(struct timer)); |
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memset(prefs->rec_tm, 0, sizeof(struct timer)); |
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peer->peerd_loop = custom_peerd_loop; |
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peer->priv = (void *) prefs;
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return 0; |
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arg_fail:
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free(prefs); |
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custom_peer_usage(); |
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return -1; |
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} |
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int send_request(struct peerd *peer, struct bench *prefs) |
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{ |
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struct xseg_request *req;
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struct xseg *xseg = peer->xseg;
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xport srcport = prefs->src_port; |
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xport dstport = prefs->dst_port; |
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xport p; |
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int r;
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uint32_t targetlen=10; //FIXME: handle it better |
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uint64_t size = prefs->bs; |
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//srcport and dstport must already be provided by the user.
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//returns struct xseg_request with basic initializations
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XSEGLOG2(&lc, I, "Get request %lu\n", prefs->get_tm->completed);
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timer_start(prefs->get_tm); |
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req = xseg_get_request(xseg, srcport, dstport, X_ALLOC); |
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if (!req) {
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fprintf(stderr, "No request\n");
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return -1; |
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} |
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timer_stop(prefs->get_tm); |
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XSEGLOG2(&lc, I, "Prepare request\n");
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//Allocate enough space for the data and the target's name
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r = xseg_prep_request(xseg, req, targetlen, size); |
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if (r < 0) { |
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fprintf(stderr, "Cannot prepare request! (%lu, %llu)\n",
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(unsigned long)targetlen, (unsigned long long)size); |
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xseg_put_request(xseg, req, srcport); |
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return -1; |
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} |
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#if 0
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//TODO: allow strcpy, memcpy
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//Copy target's name to the newly allocated space
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req_target = xseg_get_target(xseg, req);
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strncpy(req_target, target, targetlen);
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//Copy data buffer to the newly allocated space
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req_data = xseg_get_data(xseg, req);
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memcpy(req_data, buf, size);
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req->offset = offset;
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req->size = size;
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req->op = X_WRITE;
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#endif
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XSEGLOG2(&lc, I, "Submit request %lu\n", prefs->sub_tm->completed);
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//Submit the request from the source port to the target port
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timer_start(prefs->sub_tm); |
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p = xseg_submit(xseg, req, srcport, X_ALLOC); |
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if (p == NoPort) {
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fprintf(stderr, "Cannot submit\n");
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return -1; |
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} |
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timer_stop(prefs->sub_tm); |
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timer_start(prefs->rec_tm); |
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//Send SIGIO to the process that has binded this port to inform that
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//IO is possible
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xseg_signal(xseg, p); |
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return 0; |
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} |
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/*
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* This function substitutes the default peerd_loop of peer.c.
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* It's plugged to struct peerd at custom peer's initialisation
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*/
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int custom_peerd_loop(void *arg) |
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{ |
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#ifdef MT
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struct thread *t = (struct thread *) arg; |
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struct peerd *peer = t->peer;
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char *id = t->arg;
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#else
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struct peerd *peer = (struct peerd *) arg; |
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char id[4] = {'P','e','e','r'}; |
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#endif
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struct xseg *xseg = peer->xseg;
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struct bench *prefs = peer->priv;
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xport portno_start = peer->portno_start; |
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xport portno_end = peer->portno_end; |
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uint64_t threshold=1000/(1 + portno_end - portno_start); |
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pid_t pid =syscall(SYS_gettid); |
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XSEGLOG2(&lc, I, "%s has tid %u.\n",id, pid);
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xseg_init_local_signal(xseg, peer->portno_start); |
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uint64_t loops; |
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timer_start(prefs->total_tm); |
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while (!isTerminate()
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&& xq_count(&peer->free_reqs) == peer->nr_ops |
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&& prefs->rec_tm->completed != prefs->ts / prefs->bs ) { |
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#if 0
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//#pragma GCC push_options
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//#pragma GCC optimize ("O0")
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timer_start(prefs->total_tm);
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//for(int i = 0; i<1000; i++){}
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/*while(prefs->sub_tm->completed < 10000) {
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timer_start(prefs->sub_tm);
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timer_stop(prefs->sub_tm);
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}*/
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usleep(500000);
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timer_stop(prefs->total_tm);
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break;
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//#pragma GCC pop_options
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while (prefs->sub_tm->completed - prefs->rec_tm->completed <
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prefs->iodepth){
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XSEGLOG2(&lc, I, "Start sending new request\n");
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send_request(peer, prefs);
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}
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#endif
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for (loops = threshold; loops > 0; loops--) { |
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if (loops == 1) |
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xseg_prepare_wait(xseg, peer->portno_start); |
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if (check_ports(peer))
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loops = threshold; |
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} |
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#ifdef ST_THREADS
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if (ta){
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st_sleep(0);
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continue;
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} |
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#endif
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XSEGLOG2(&lc, I, "%s goes to sleep\n",id);
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xseg_wait_signal(xseg, 10000000UL);
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xseg_cancel_wait(xseg, peer->portno_start); |
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XSEGLOG2(&lc, I, "%s woke up\n", pid);
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} |
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return 0; |
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} |
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void custom_peer_finalize(struct peerd *peer) |
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{ |
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struct bench *prefs = peer->priv;
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unsigned int s, ms, us, ns; |
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if (!prefs->total_tm->completed)
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timer_stop(prefs->total_tm); |
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struct timespec tm = prefs->total_tm->sum;
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ns = tm.tv_nsec % 1000;
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tm.tv_nsec /= 1000;
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us = tm.tv_nsec % 1000;
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ms = tm.tv_nsec / 1000;
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s = tm.tv_sec; |
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printf("\n");
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printf(" Total time spent\n");
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printf("================================\n");
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printf(" |-s-||-ms-|-us-|-ns-|\n");
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printf("Time: %03u, %03u %03u %03u\n", s, ms, us, ns);
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return;
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} |
380 |
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void handle_received(struct peerd *peer, struct peer_req *pr) |
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{ |
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//FIXME: handle null pointer
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struct bench *prefs = peer->priv;
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struct timer *rec = prefs->rec_tm;
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|
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timer_stop(rec); |
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} |
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int dispatch(struct peerd *peer, struct peer_req *pr, struct xseg_request *req, |
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enum dispatch_reason reason)
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{ |
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switch (reason) {
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case dispatch_accept:
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//This is wrong, benchmarking peer should not accept requests,
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//only receive them.
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complete(peer, pr); |
399 |
case dispatch_receive:
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handle_received(peer, pr); |
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default:
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fail(peer, pr); |
403 |
} |
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return 0; |
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} |