* without modification, are permitted provided that the following
* conditions are met:
*
-* 1. Redistributions of source code must retain the above
-* copyright notice, this list of conditions and the following
-* disclaimer.
-* 2. Redistributions in binary form must reproduce the above
-* copyright notice, this list of conditions and the following
-* disclaimer in the documentation and/or other materials
-* provided with the distribution.
-*
-* THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
-* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
-* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
-* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
-* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
-* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-* POSSIBILITY OF SUCH DAMAGE.
-*
-* The views and conclusions contained in the software and
-* documentation are those of the authors and should not be
-* interpreted as representing official policies, either expressed
-* or implied, of GRNET S.A.
-*/
+ * 1. Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ * 2. Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
+ * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and
+ * documentation are those of the authors and should not be
+ * interpreted as representing official policies, either expressed
+ * or implied, of GRNET S.A.
+ */
#define _GNU_SOURCE
#include <stdio.h>
#include <sys/util.h>
#include <signal.h>
#include <bench-xseg.h>
+#include <bench-lfsr.h>
+#include <limits.h>
+
+char global_id[IDLEN];
+/*
+ * This macro checks two things:
+ * a) If in-flight requests are less than given iodepth
+ * b) If we have submitted all of the requests
+ */
+#define CAN_SEND_REQUEST(prefs) \
+ ((prefs->status->submitted - prefs->status->received < prefs->iodepth) && \
+ (prefs->status->submitted < prefs->status->max))
+
+#define CAN_VERIFY(prefs) \
+ ((GET_FLAG(VERIFY, prefs->flags) != VERIFY_NO) && prefs->op == X_READ)
void custom_peer_usage()
{
-fprintf(stderr, "Custom peer options: \n"
- " --------------------------------------------\n"
- " -op | None | XSEG operation [read|write|info|delete]\n"
- " --pattern | None | I/O pattern [sync|rand]\n"
- " -ts | None | Total I/O size\n"
- " -os | 4M | Object size\n"
- " -bs | 4k | Block size\n"
- " -dp | None | Destination port\n"
- " --iodepth | 1 | Number of in-flight I/O requests\n"
- "\n");
+ fprintf(stderr, "Custom peer options: \n"
+ " --------------------------------------------\n"
+ " -op | None | XSEG operation [read|write|info|delete]\n"
+ " --pattern | None | I/O pattern [seq|rand]\n"
+ " --verify | no | Verify written requests [no|meta|full]\n"
+ " -rc | None | Request cap\n"
+ " -to | None | Total objects\n"
+ " -ts | None | Total I/O size\n"
+ " -os | 4M | Object size\n"
+ " -bs | 4k | Block size\n"
+ " -tp | None | Target port\n"
+ " --iodepth | 1 | Number of in-flight I/O requests\n"
+ " --seed | None | Initialize LFSR and target names\n"
+ " --insanity| sane | Adjust insanity level of benchmark:\n"
+ " | | [sane|eccentric|manic|paranoid]\n"
+ "\n"
+ "Additional information:\n"
+ " --------------------------------------------\n"
+ " The -to and -ts options are mutually exclusive\n"
+ "\n");
}
int custom_peer_init(struct peerd *peer, int argc, char *argv[])
{
-struct bench *prefs;
-char total_size[MAX_ARG_LEN + 1];
-char object_size[MAX_ARG_LEN + 1];
-char block_size[MAX_ARG_LEN + 1];
-char op[MAX_ARG_LEN + 1];
-char pattern[MAX_ARG_LEN + 1];
-struct xseg *xseg = peer->xseg;
-unsigned int xseg_page_size = 1 << xseg->config.page_shift;
-long dst_port = -1;
-int r;
-
-op[0] = 0;
-pattern[0] = 0;
-total_size[0] = 0;
-block_size[0] = 0;
-object_size[0] = 0;
+ struct bench *prefs;
+ char request_cap[MAX_ARG_LEN + 1];
+ char total_objects[MAX_ARG_LEN + 1];
+ char total_size[MAX_ARG_LEN + 1];
+ char object_size[MAX_ARG_LEN + 1];
+ char block_size[MAX_ARG_LEN + 1];
+ char op[MAX_ARG_LEN + 1];
+ char pattern[MAX_ARG_LEN + 1];
+ char insanity[MAX_ARG_LEN + 1];
+ char verify[MAX_ARG_LEN + 1];
+ struct xseg *xseg = peer->xseg;
+ unsigned int xseg_page_size = 1 << xseg->config.page_shift;
+ long iodepth = -1;
+ long dst_port = -1;
+ unsigned long seed = -1;
+ uint64_t rc;
+ struct timespec timer_seed;
+ int set_by_hand = 0;
+ int r;
+
+ op[0] = 0;
+ pattern[0] = 0;
+ total_objects[0] = 0;
+ total_size[0] = 0;
+ block_size[0] = 0;
+ object_size[0] = 0;
+ insanity[0] = 0;
+ verify[0] = 0;
+ request_cap[0] = 0;
#ifdef MT
-for (i = 0; i < nr_threads; i++) {
- prefs = peer->thread[i]->priv;
+ for (i = 0; i < nr_threads; i++) {
+ prefs = peer->thread[i]->priv;
+ prefs = malloc(sizeof(struct bench));
+ if (!prefs) {
+ perror("malloc");
+ return -1;
+ }
+ }
+#endif
prefs = malloc(sizeof(struct bench));
if (!prefs) {
perror("malloc");
return -1;
}
-}
-#endif
-prefs = malloc(sizeof(struct bench));
-if (!prefs) {
- perror("malloc");
- return -1;
-}
-prefs->flags = 0;
-
-//Begin reading the benchmark-specific arguments
-BEGIN_READ_ARGS(argc, argv);
-READ_ARG_STRING("-op", op, MAX_ARG_LEN);
-READ_ARG_STRING("--pattern", pattern, MAX_ARG_LEN);
-READ_ARG_STRING("-ts", total_size, MAX_ARG_LEN);
-READ_ARG_STRING("-os", object_size, MAX_ARG_LEN);
-READ_ARG_STRING("-bs", block_size, MAX_ARG_LEN);
-READ_ARG_ULONG("--iodepth", prefs->iodepth);
-READ_ARG_ULONG("-dp", dst_port);
-END_READ_ARGS();
-
-/*****************************\
- * Check I/O type parameters *
-\*****************************/
-
-if (!op[0]) {
- XSEGLOG2(&lc, E, "xseg operation needs to be supplied\n");
- goto arg_fail;
-}
-r = read_op(op);
-if (r < 0) {
- XSEGLOG2(&lc, E, "Invalid syntax: -op %s\n", op);
- goto arg_fail;
-}
-prefs->op = r;
+ prefs->flags = 0;
-if (!pattern[0]) {
- XSEGLOG2(&lc, E, "I/O pattern needs to be supplied\n");
- goto arg_fail;
-}
-r = read_pattern(pattern);
-if (r < 0) {
- XSEGLOG2(&lc, E, "Invalid syntax: --pattern %s\n", pattern);
- goto arg_fail;
-}
-prefs->flags |= (uint8_t)r;
-
-/*************************
- * Check size parameters *
- *************************/
-
-//Block size (bs): Defaults to 4K.
-//It must be a number followed by one of these characters: [k|K|m|M|g|G].
-//If not, it will be considered as size in bytes.
-//Must be integer multiple of segment's page size (typically 4k).
-if (!block_size[0])
- strcpy(block_size,"4k");
-
-if (!prefs->iodepth)
- prefs->iodepth = 1;
-
-prefs->bs = str2num(block_size);
-if (!prefs->bs) {
- XSEGLOG2(&lc, E, "Invalid syntax: -bs %s\n", block_size);
- goto arg_fail;
-} else if (prefs->bs % xseg_page_size) {
- XSEGLOG2(&lc, E, "Misaligned block size: %s\n", block_size);
- goto arg_fail;
-}
+ prefs->status = malloc(sizeof(struct req_status));
+ if (!prefs->status) {
+ perror("malloc");
+ return -1;
+ }
+ memset(prefs->status, 0, sizeof(struct req_status));
+
+ //Begin reading the benchmark-specific arguments
+ BEGIN_READ_ARGS(argc, argv);
+ READ_ARG_STRING("-rc", request_cap, MAX_ARG_LEN);
+ READ_ARG_STRING("-op", op, MAX_ARG_LEN);
+ READ_ARG_STRING("--pattern", pattern, MAX_ARG_LEN);
+ READ_ARG_STRING("-to", total_objects, MAX_ARG_LEN);
+ READ_ARG_STRING("-ts", total_size, MAX_ARG_LEN);
+ READ_ARG_STRING("-os", object_size, MAX_ARG_LEN);
+ READ_ARG_STRING("-bs", block_size, MAX_ARG_LEN);
+ READ_ARG_ULONG("--iodepth", iodepth);
+ READ_ARG_ULONG("-tp", dst_port);
+ READ_ARG_ULONG("--seed", seed);
+ READ_ARG_STRING("--insanity", insanity, MAX_ARG_LEN);
+ READ_ARG_STRING("--verify", verify, MAX_ARG_LEN);
+ END_READ_ARGS();
+
+ /*****************************\
+ * Check I/O type parameters *
+ \*****************************/
+
+ //We support 4 xseg operations: X_READ, X_WRITE, X_DELETE, X_INFO
+ //The I/O pattern of these operations can be either sequential (seq) or
+ //random (rand)
+ if (!op[0]) {
+ XSEGLOG2(&lc, E, "xseg operation needs to be supplied\n");
+ goto arg_fail;
+ }
+ r = read_op(op);
+ if (r < 0) {
+ XSEGLOG2(&lc, E, "Invalid syntax: -op %s\n", op);
+ goto arg_fail;
+ }
+ prefs->op = r;
-//Total I/O size (ts): Must be supplied by user.
-//Must have the same format as "total size"
-//Must be integer multiple of "block size"
-if (!total_size[0]) {
- XSEGLOG2(&lc, E, "Total I/O size needs to be supplied\n");
- goto arg_fail;
-}
+ if (!pattern[0]) {
+ XSEGLOG2(&lc, E, "I/O pattern needs to be supplied\n");
+ goto arg_fail;
+ }
+ r = read_pattern(pattern);
+ if (r < 0) {
+ XSEGLOG2(&lc, E, "Invalid syntax: --pattern %s\n", pattern);
+ goto arg_fail;
+ }
+ SET_FLAG(PATTERN, prefs->flags, r);
-prefs->ts = str2num(total_size);
-if (!prefs->ts) {
- XSEGLOG2(&lc, E, "Invalid syntax: -ts %s\n", total_size);
- goto arg_fail;
-} else if (prefs->ts % prefs->bs) {
- XSEGLOG2(&lc, E, "Misaligned total I/O size: %s\n", total_size);
- goto arg_fail;
-} else if (prefs->ts > xseg->segment_size) {
- XSEGLOG2(&lc, E, "Total I/O size exceeds segment size\n", total_size);
- goto arg_fail;
-}
+ if (!verify[0])
+ strcpy(verify, "no");
+ r = read_verify(verify);
+ if (r < 0) {
+ XSEGLOG2(&lc, E, "Invalid syntax: --verify %s\n", verify);
+ goto arg_fail;
+ }
+ SET_FLAG(VERIFY, prefs->flags, r);
+
+ //Default iodepth value is 1
+ if (iodepth < 0)
+ prefs->iodepth = 1;
+ else
+ prefs->iodepth = iodepth;
+
+ /**************************\
+ * Check timer parameters *
+ \**************************/
+
+ //Most of the times, not all timers need to be used.
+ //We can choose which timers will be used by adjusting the "insanity"
+ //level of the benchmark i.e. the obscurity of code paths (get request,
+ //submit request) that will be timed.
+ if (!insanity[0])
+ strcpy(insanity, "sane");
+
+ r = read_insanity(insanity);
+ if (r < 0) {
+ XSEGLOG2(&lc, E, "Invalid syntax: --insanity %s\n", insanity);
+ goto arg_fail;
+ }
+ SET_FLAG(INSANITY, prefs->flags, r);
+
+ /*****************************\
+ * Check I/O size parameters *
+ \*****************************/
+
+ //Block size (bs): Defaults to 4K.
+ //It must be a number followed by one of these characters:
+ // [k|K|m|M|g|G]
+ //If not, it will be considered as size in bytes.
+ //Must be integer multiple of segment's page size (typically 4k).
+ if (!block_size[0])
+ strcpy(block_size,"4k");
+
+ prefs->bs = str2num(block_size);
+ if (!prefs->bs) {
+ XSEGLOG2(&lc, E, "Invalid syntax: -bs %s\n", block_size);
+ goto arg_fail;
+ } else if (prefs->bs % xseg_page_size) {
+ XSEGLOG2(&lc, E, "Misaligned block size: %s\n", block_size);
+ goto arg_fail;
+ }
-//Object size (os): Defaults to 4M.
-//Must have the same format as "total size"
-//Must be integer multiple of "block size"
-if (!object_size[0])
- strcpy(object_size,"4M");
-
-prefs->os = str2num(object_size);
-if (!prefs->os) {
- XSEGLOG2(&lc, E, "Invalid syntax: -os %s\n", object_size);
- goto arg_fail;
-} else if (prefs->os % prefs->bs) {
- XSEGLOG2(&lc, E, "Misaligned object size: %s\n", object_size);
- goto arg_fail;
-}
+ //Total objects (to) or total I/O size (ts).
+ //Must have the same format as "block size"
+ //They are mutually exclusive
+ if (total_objects[0] && total_size[0]) {
+ XSEGLOG2(&lc, E, "Total objects and total size are mutually exclusive\n");
+ goto arg_fail;
+ } else if (total_objects[0]) {
+ prefs->to = str2num(total_objects);
+ if (!prefs->to) {
+ XSEGLOG2(&lc, E, "Invalid syntax: -to %s\n", total_objects);
+ goto arg_fail;
+ }
+ //In this case, the maximum number of requests is the total number of
+ //objects we will handle
+ prefs->status->max = prefs->to;
+ } else if (total_size[0]) {
+ if (prefs->op != X_READ && prefs->op != X_WRITE) {
+ XSEGLOG2(&lc, E,
+ "Total objects must be supplied (required by op %s)\n", op);
+ goto arg_fail;
+ }
+ prefs->ts = str2num(total_size);
+ if (!prefs->ts) {
+ XSEGLOG2(&lc, E, "Invalid syntax: -ts %s\n", total_size);
+ goto arg_fail;
+ } else if (prefs->ts % prefs->bs) {
+ XSEGLOG2(&lc, E, "Misaligned total I/O size: %s\n", total_size);
+ goto arg_fail;
+ }
+ //In this case, the maximum number of requests is the number of blocks
+ //we need to cover the total I/O size
+ prefs->status->max = prefs->ts / prefs->bs;
+ } else {
+ XSEGLOG2(&lc, E, "Total objects or total size must be supplied\n");
+ goto arg_fail;
+ }
+
+ //Object size (os): Defaults to 4M.
+ //Must have the same format as "block size"
+ //Must be integer multiple of "block size"
+ if (!object_size[0])
+ strcpy(object_size,"4M");
+
+ prefs->os = str2num(object_size);
+ if (!prefs->os) {
+ XSEGLOG2(&lc, E, "Invalid syntax: -os %s\n", object_size);
+ goto arg_fail;
+ } else if (prefs->os % prefs->bs) {
+ XSEGLOG2(&lc, E, "Misaligned object size: %s\n", object_size);
+ goto arg_fail;
+ }
-/*************************
- * Check port parameters *
- *************************/
-if (dst_port < 0){
- XSEGLOG2(&lc, E, "Destination port needs to be supplied\n");
- goto arg_fail;
-}
+ /*************************\
+ * Check port parameters *
+ \*************************/
-prefs->src_port = peer->portno_start; //TODO: allow user to change this
-prefs->dst_port = (xport) dst_port;
+ if (dst_port < 0){
+ XSEGLOG2(&lc, E, "Target port must be supplied\n");
+ goto arg_fail;
+ }
+
+ prefs->src_port = peer->portno_start; //TODO: allow user to change this
+ prefs->dst_port = (xport) dst_port;
+
+ /*********************************\
+ * Create timers for all metrics *
+ \*********************************/
+
+ if (init_timer(&prefs->total_tm, INSANITY_SANE))
+ goto tm_fail;
+ if (init_timer(&prefs->sub_tm, INSANITY_MANIC))
+ goto tm_fail;
+ if (init_timer(&prefs->get_tm, INSANITY_PARANOID))
+ goto tm_fail;
+ if (init_timer(&prefs->rec_tm, INSANITY_ECCENTRIC))
+ goto tm_fail;
+
+ /*************************************\
+ * Initialize the LFSR and global_id *
+ \*************************************/
+reseed:
+ //We proceed to initialise the global_id, and seed variables.
+ if (seed == -1) {
+ clock_gettime(CLOCK_MONOTONIC_RAW, &timer_seed);
+ seed = timer_seed.tv_nsec;
+ } else {
+ set_by_hand = 1;
+ }
+ create_id(seed);
-/*********************************
- * Create timers for all metrics *
- *********************************/
+ if (GET_FLAG(PATTERN, prefs->flags) == PATTERN_RAND) {
+ prefs->lfsr = malloc(sizeof(struct bench_lfsr));
+ if (!prefs->lfsr) {
+ perror("malloc");
+ goto lfsr_fail;
+ }
-if (init_timer(&prefs->total_tm, TM_SANE))
- goto tm_fail;
-if (init_timer(&prefs->sub_tm, TM_MANIC))
- goto tm_fail;
-if (init_timer(&prefs->get_tm, TM_PARANOID))
- goto tm_fail;
-if (init_timer(&prefs->rec_tm, TM_ECCENTRIC))
- goto tm_fail;
+ r = lfsr_init(prefs->lfsr, prefs->status->max, seed, seed & 0xF);
+ if (r && set_by_hand) {
+ XSEGLOG2(&lc, E, "LFSR could not be initialized.\n");
+ goto lfsr_fail;
+ } else if (r) {
+ seed = -1;
+ goto reseed;
+ }
+ }
-/**************************
- * Customize struct peerd *
- **************************/
+ /****************************\
+ * Finalize initializations *
+ \****************************/
+
+ /* The request cap must be enforced only after the LFSR is initialized */
+ if (request_cap[0]) {
+ rc = str2num(request_cap);
+ if (!rc) {
+ XSEGLOG2(&lc, E, "Invalid syntax: -rc %s\n", request_cap);
+ goto arg_fail;
+ } else if (rc > prefs->status->max) {
+ XSEGLOG2(&lc, E, "Request cap exceeds current request total.\n");
+ goto arg_fail;
+ }
+ prefs->status->max = rc;
+ }
-peer->peerd_loop = custom_peerd_loop;
-peer->priv = (void *) prefs;
-return 0;
+ prefs->peer = peer;
+ peer->peerd_loop = bench_peerd_loop;
+ peer->priv = (void *) prefs;
+ XSEGLOG2(&lc, I, "Global ID is %s\n", global_id);
+ return 0;
arg_fail:
-custom_peer_usage();
+ custom_peer_usage();
+lfsr_fail:
+ free(prefs->lfsr);
tm_fail:
-free(prefs->total_tm);
-free(prefs->sub_tm);
-free(prefs->get_tm);
-free(prefs->rec_tm);
-free(prefs);
-return -1;
+ free(prefs->total_tm);
+ free(prefs->sub_tm);
+ free(prefs->get_tm);
+ free(prefs->rec_tm);
+ free(prefs);
+ return -1;
}
static int send_request(struct peerd *peer, struct bench *prefs)
{
-struct xseg_request *req;
-struct xseg *xseg = peer->xseg;
-struct peer_req *pr;
-xport srcport = prefs->src_port;
-xport dstport = prefs->dst_port;
-xport p;
+ struct xseg_request *req;
+ struct xseg *xseg = peer->xseg;
+ struct peer_req *pr;
+ xport srcport = prefs->src_port;
+ xport dstport = prefs->dst_port;
+ xport p;
-int r;
-uint64_t new;
-uint64_t size = prefs->bs;
+ int r;
+ uint64_t new;
+ uint64_t size = prefs->bs;
//srcport and dstport must already be provided by the user.
//returns struct xseg_request with basic initializations
- XSEGLOG2(&lc, D, "Get request %lu\n", prefs->get_tm->completed);
- timer_start(prefs->get_tm);
+ XSEGLOG2(&lc, D, "Get new request\n");
+ timer_start(prefs, prefs->get_tm);
req = xseg_get_request(xseg, srcport, dstport, X_ALLOC);
if (!req) {
XSEGLOG2(&lc, W, "Cannot get request\n");
return -1;
}
- timer_stop(prefs->get_tm, NULL);
+ timer_stop(prefs, prefs->get_tm, NULL);
//Allocate enough space for the data and the target's name
- XSEGLOG2(&lc, D, "Prepare request %lu\n", prefs->sub_tm->completed);
+ XSEGLOG2(&lc, D, "Prepare new request\n");
r = xseg_prep_request(xseg, req, TARGETLEN, size);
if (r < 0) {
XSEGLOG2(&lc, W, "Cannot prepare request! (%lu, %llu)\n",
- TARGETLEN, (unsigned long long)size);
+ TARGETLEN, (unsigned long long)size);
goto put_xseg_request;
}
- /************PROPOSED************/
+ //Determine what the next target/chunk will be, based on I/O pattern
new = determine_next(prefs);
+ req->op = prefs->op;
+ XSEGLOG2(&lc, I, "Our new request is %lu\n", new);
+ //Create a target of this format: "bench-<global_id>-<obj_no>"
create_target(prefs, req, new);
- if(prefs->op == X_WRITE || prefs->op == X_READ) {
+ if (prefs->op == X_WRITE || prefs->op == X_READ) {
req->size = size;
- req->offset = (new * prefs->bs) % prefs->os;
+ //Calculate the chunk's offset inside the object
+ req->offset = calculate_offset(prefs, new);
+ XSEGLOG2(&lc, D, "Offset of request %lu is %lu\n", new, req->offset);
- if(prefs->op == X_WRITE)
+ if (prefs->op == X_WRITE)
create_chunk(prefs, req, new);
}
- req->op = prefs->op;
-
- /************PROPOSED************/
//Measure this?
XSEGLOG2(&lc, D, "Allocate peer request\n");
pr->portno = srcport;
pr->req = req;
pr->priv = malloc(sizeof(struct timespec));
- if(!pr->priv) {
+ if (!pr->priv) {
perror("malloc");
goto put_peer_request;
}
- XSEGLOG2(&lc, D, "Set request data\n");
+ //XSEGLOG2(&lc, D, "Set request data\n");
r = xseg_set_req_data(xseg, req, pr);
- if (r<0) {
+ if (r < 0) {
XSEGLOG2(&lc, W, "Cannot set request data\n");
goto put_peer_request;
}
* measure elapsed time. Thus, we memcpy its submission time to pr->priv.
* QUESTION: Is this the fastest way?
*/
- timer_start(prefs->rec_tm);
- memcpy(pr->priv, &prefs->rec_tm->start_time, sizeof(struct timespec));
+ timer_start(prefs, prefs->rec_tm);
+ if (prefs->rec_tm->insanity <= GET_FLAG(INSANITY, prefs->flags))
+ memcpy(pr->priv, &prefs->rec_tm->start_time, sizeof(struct timespec));
//Submit the request from the source port to the target port
- XSEGLOG2(&lc, D, "Submit request %lu\n", prefs->sub_tm->completed);
- //QUESTION: Can't we just use the submision time calculated previously?
- timer_start(prefs->sub_tm);
+ XSEGLOG2(&lc, D, "Submit request %lu\n", new);
+ timer_start(prefs, prefs->sub_tm);
p = xseg_submit(xseg, req, srcport, X_ALLOC);
if (p == NoPort) {
XSEGLOG2(&lc, W, "Cannot submit request\n");
goto put_peer_request;
}
- timer_stop(prefs->sub_tm, NULL);
+ prefs->status->submitted++;
+ timer_stop(prefs, prefs->sub_tm, NULL);
- //Send SIGIO to the process that has binded this port to inform that
+ //Send SIGIO to the process that has bound this port to inform that
//IO is possible
- xseg_signal(xseg, p);
+ r = xseg_signal(xseg, p);
+ //if (r < 0)
+ // XSEGLOG2(&lc, W, "Cannot signal destination peer (reason %d)\n", r);
return 0;
* This function substitutes the default generic_peerd_loop of peer.c.
* It's plugged to struct peerd at custom peer's initialisation
*/
-int custom_peerd_loop(void *arg)
+int bench_peerd_loop(void *arg)
{
#ifdef MT
struct thread *t = (struct thread *) arg;
xport portno_start = peer->portno_start;
xport portno_end = peer->portno_end;
uint64_t threshold=1000/(1 + portno_end - portno_start);
- pid_t pid =syscall(SYS_gettid);
+ pid_t pid = syscall(SYS_gettid);
int r;
+ uint64_t loops;
XSEGLOG2(&lc, I, "%s has tid %u.\n",id, pid);
xseg_init_local_signal(xseg, peer->portno_start);
- uint64_t loops;
- unsigned long max_completed = prefs->ts / prefs->bs;
- timer_start(prefs->total_tm);
+ timer_start(prefs, prefs->total_tm);
+send_request:
while (!isTerminate()) {
#ifdef MT
if (t->func) {
continue;
}
#endif
-send_request:
- while (prefs->sub_tm->completed - prefs->rec_tm->completed <
- prefs->iodepth && prefs->sub_tm->completed < max_completed){
+ while (CAN_SEND_REQUEST(prefs)) {
+ xseg_cancel_wait(xseg, peer->portno_start);
+ XSEGLOG2(&lc, D, "...because %lu < %lu && %lu < %lu\n",
+ prefs->status->submitted - prefs->status->received,
+ prefs->iodepth, prefs->status->received,
+ prefs->status->max);
XSEGLOG2(&lc, D, "Start sending new request\n");
r = send_request(peer, prefs);
- if (r<0)
+ if (r < 0)
break;
}
//Heart of peerd_loop. This loop is common for everyone.
for (loops = threshold; loops > 0; loops--) {
+ if (loops == 1)
+ xseg_prepare_wait(xseg, peer->portno_start);
+
if (check_ports(peer)) {
- if (max_completed == prefs->rec_tm->completed)
- return 0;
- else
- //If an old request has just been acked, the most sensible
- //thing to do is to immediately send a new one
+ //If an old request has just been acked, the most sensible
+ //thing to do is to immediately send a new one
+ if (prefs->status->received < prefs->status->max)
goto send_request;
+ else
+ return 0;
}
}
- xseg_prepare_wait(xseg, peer->portno_start);
+ //struct xseg_port *port = xseg_get_port(xseg, portno_start);
+ //struct xq *q;
+ //q = XPTR_TAKE(port->request_queue, xseg->segment);
+ //XSEGLOG2(&lc, I, "%s goes to sleep with %u requests pending\n",
+ // id, xq_count(q));
+ XSEGLOG2(&lc, I, "%s goes to sleep\n", id);
#ifdef ST_THREADS
if (ta){
st_sleep(0);
continue;
}
#endif
- XSEGLOG2(&lc, I, "%s goes to sleep\n",id);
xseg_wait_signal(xseg, 10000000UL);
xseg_cancel_wait(xseg, peer->portno_start);
XSEGLOG2(&lc, I, "%s woke up\n", id);
{
struct bench *prefs = peer->priv;
//TODO: Measure mean time, standard variation
- struct tm_result total; //mean, std;
if (!prefs->total_tm->completed)
- timer_stop(prefs->total_tm, NULL);
+ timer_stop(prefs, prefs->total_tm, NULL);
- separate_by_order(prefs->total_tm->sum, &total);
- print_res(total, "Total Time");
+ print_stats(prefs);
+ print_res(prefs, prefs->total_tm, "Total Requests");
return;
}
-
+/*
+ * handle_received: +1 to our received requests.
+ * Do some sanity checks and then check if request is failed.
+ * If not try to verify the request if asked.
+ */
static void handle_received(struct peerd *peer, struct peer_req *pr)
{
//FIXME: handle null pointer
struct bench *prefs = peer->priv;
struct timer *rec = prefs->rec_tm;
+ prefs->status->received++;
if (!pr->req) {
//This is a serious error, so we must stop
XSEGLOG2(&lc, E, "Received peer request with no xseg request");
return;
}
- if (!pr->priv) {
+ if ((GET_FLAG(INSANITY, prefs->flags) < rec->insanity) && !pr->priv) {
XSEGLOG2(&lc, W, "Cannot find submission time of request");
return;
}
- timer_stop(rec, pr->priv);
+ timer_stop(prefs, rec, pr->priv);
+
+ if (!(pr->req->state & XS_SERVED))
+ prefs->status->failed++;
+ else if (CAN_VERIFY(prefs) && read_chunk(prefs, pr->req))
+ prefs->status->corrupted++;
if (xseg_put_request(peer->xseg, pr->req, pr->portno))
XSEGLOG2(&lc, W, "Cannot put xseg request\n");
projects / archipelago / blobdiff