332 lines
12 KiB
C
Executable File
332 lines
12 KiB
C
Executable File
#include <stdio.h>
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#include <stdlib.h>
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#include <memory.h>
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#include <sys/mman.h>
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#include <unistd.h>
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#include <sys/ipc.h>
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#include <sys/shm.h>
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#include <sys/types.h>
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#include "ibcomm.h"
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#include "mtype.h"
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#include "mcons.h"
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#include "mm_ib_test.h"
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//#define DEBUG_RDMA_WR_WITH_IMM
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#ifdef DEBUG_RDMA_WR_WITH_IMM
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#define dprintf printf
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#else
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#define dprintf(...)
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#endif
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#define TEST_NRECVBUF 10
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#define TEST_RDMA_FLG_SIZE (sizeof(unsigned short))
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#define NTRIAL 30
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#define PPOLLS 10 /* sweet spot is around 10 */
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#define NSKIPS 10
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#define NSKIPR 10
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static unsigned long rdtsc() {
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unsigned long x;
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__asm__ __volatile__("xorl %%eax, %%eax; cpuid;" : : : "%rax", "%rbx", "%rcx", "%rdx"); /* rdtsc cannot be executed earlier than this */
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__asm__ __volatile__("rdtsc; shl $32, %%rdx; or %%rdx, %%rax" : "=a"(x) : : "memory"); /* rdtsc cannot be executed earlier than here */
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__asm__ __volatile__("xorl %%eax, %%eax; cpuid;" : : : "%rax", "%rbx", "%rcx", "%rdx"); /* following instructions cannot be executed earlier than this */
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return x;
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}
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int debug_counter = 0, debug_counter2 = 0, debug_counter3 = 0, dc = 0;
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int main(int argc, char **argv) {
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int ibcom_errno;
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config_t config;
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int i, j, k, tag = 0, rc = 0;
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char sync_res;
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unsigned long tscs, tsce;
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resource_t res;
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pdinfo_t pdinfo;
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qpinfo_t qpinfo;
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mrinfo_t *loc_mr_list = NULL;
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mrinfo_t *mrinfo_recv_list = NULL;
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FILE* fp;
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fp = popen("cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq", "r");
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if(!fp) { printf("popen failed\n"); goto fn_fail; }
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char freq_str[256];
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int nread = fread(freq_str, sizeof(char), 256, fp);
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if(!nread) { printf("popen failed"); goto fn_fail; }
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freq_str[nread] = 0;
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long int freq = strtol(freq_str, NULL, 10) * 1000;
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if(freq != 2601000000) { printf("freq=%ld\n", freq); goto fn_fail; }
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pclose(fp);
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if(read_config(&config, argc, argv)) { goto fn_fail; }
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config.use_rdma = 1;
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if(config.buf_size == 0) { printf("set buf_size"); goto fn_fail; }
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if (resource_create(config, &res) || pd_create(&res, &pdinfo) || qp_create(&res, &pdinfo, &qpinfo)) { goto main_exit; }
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// rdma-write-to ring with 2NTRIAL slots
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//#define SHM
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#ifdef SHM
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#define MAX2(x,y) ((x)>(y)?(x):(y))
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int shmid = shmget(IPC_PRIVATE, MAX2(2*1024*1024, IBCOM_INLINE_DATA * NCHAIN * NTRIAL), SHM_HUGETLB | IPC_CREAT | SHM_R | SHM_W);
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if(shmid < 0) { perror("shmget"); goto fn_fail; }
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//printf("shmid: 0x%x\n", shmid);
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void *rdma_buf = shmat(shmid, 0, 0);
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if(rdma_buf == (char *)-1) {
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perror("Shared memory attach failure");
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shmctl(shmid, IPC_RMID, NULL);
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goto fn_fail;
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}
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#else
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void *rdma_buf = mmap(0, IBCOM_INLINE_DATA * NCHAIN * NTRIAL, PROT_READ|PROT_WRITE, MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
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#endif
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/* unmark magic */
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memset(rdma_buf, 0, IBCOM_INLINE_DATA * NCHAIN * NTRIAL);
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if(!rdma_buf) { printf("mmap failed\n"); goto fn_fail; }
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if(mr_create(&res, &pdinfo, IBCOM_INLINE_DATA * NCHAIN * NTRIAL, rdma_buf, &res.rdma_mr)) { printf("mr_create failed\n"); goto fn_fail; }
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#define NSBUF 1
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// rdma-write-from buffers
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loc_mr_list = malloc(sizeof(mrinfo_t) * NSBUF);
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for(i = 0; i < NSBUF; i++) {
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void *loc_buf = mmap(0, IBCOM_INLINE_DATA * NCHAIN, PROT_READ|PROT_WRITE, MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
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if(!loc_buf) { printf("mmap failed\n"); goto fn_fail; }
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if(config.server_flg) {
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for(j = 0; j < IBCOM_INLINE_DATA * NCHAIN; j++) {
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*((char*)(loc_buf + j)) = IBCOM_INLINE_DATA * NCHAIN * i + j;
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}
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*((uint32_t*)(loc_buf + IBCOM_INLINE_DATA * NCHAIN - sizeof(uint32_t))) = IBCOM_MAGIC;
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}
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if(mr_create(&res, &pdinfo, IBCOM_INLINE_DATA * NCHAIN, loc_buf, &loc_mr_list[i])) { printf("mr_create fail\n"); goto fn_fail; }
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}
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dprintf("create RDMA buffer successfully..\n");
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/* Connect qp of each side and init them*/
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if (connect_qp(config, &res, &qpinfo)) {
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goto main_exit;
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}
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dprintf("connect done\n");
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debug_print_qp_conn_info(res, qpinfo, &config);
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/* bring qp up to RTS */
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if(init_qp(config, &qpinfo) || rtr_qp(config, &qpinfo) || rts_qp(config, &qpinfo)) { printf("trs failed\n"); goto fn_fail; }
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/* pre-post receive commands */
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if(!config.server_flg) {
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#if 0
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for(i = 0; i < _MAX_RQ_CAPACITY - 16; i++){
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ibcom_errno = ibcom_irecv(&qpinfo, 0);
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if(ibcom_errno) { printf("post_recv_req\n"); goto fn_fail; }
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}
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#endif
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}
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/* barrier */
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for(i = 0; i < (config.server_flg ? config.nremote : 1); i++) {
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if(sock_sync_data(qpinfo.sock[i], 1, "R", &sync_res)){
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perror("sock_sync_data");
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}
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}
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if (config.server_flg) { /* sender side */
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// usleep(1000000);
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#define TLBPREF_AHEAD 20//20
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int tlb_pref_ahd;
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if(NTRIAL % PPOLLS != 0) { printf("set NTRIAL multiple of PPOLLS\n"); goto fn_fail; }
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if(NTRIAL <= NSKIPS) { printf("set NTRIAL > NSKIP\n"); goto fn_fail; }
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for (i = 0; i < NTRIAL; i++) {
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if(i == NSKIPS) { tscs = rdtsc(); }
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#if 0
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for(j = 0; j < NCHAIN - 1; j++) {
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post_send_req4(&qpinfo, &loc_mr_list[i % NSBUF], IBV_WR_RDMA_WRITE, &qpinfo.remote_conn_info[0], 0, i * NCHAIN + j, IBCOM_INLINE_DATA * j);
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}
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post_send_req4(&qpinfo, &loc_mr_list[i % NSBUF], IBV_WR_RDMA_WRITE_WITH_IMM, &qpinfo.remote_conn_info[0], i, i * NCHAIN + j, IBCOM_INLINE_DATA * j);
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#else
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ibcom_isend_chain(&qpinfo, &loc_mr_list[i % NSBUF], IBV_WR_RDMA_WRITE, &qpinfo.remote_conn_info[0], i, i);
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#endif
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#if 1
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tlb_pref_ahd = 4096 * TLBPREF_AHEAD;
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__asm__ __volatile__
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("movq %0, %%rsi;"
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"movq 0(%%rsi), %%rax;"
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: : "r"((uint64_t)loc_mr_list[i % NSBUF].buf + tlb_pref_ahd) : "%rsi", "%rax");
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#endif
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#if 1
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__asm__ __volatile__
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("movq %0, %%rsi;"
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"prefetchnta 0x00(%%rsi);"
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"prefetchnta 0x40(%%rsi);"
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"prefetchnta 0x80(%%rsi);"
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"prefetchnta 0xc0(%%rsi);"
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: : "r"((uint64_t)loc_mr_list[(i+4) % NSBUF].buf) : "%rsi");
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#endif
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//#define POLL_SCQ_PERIODICALLY
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#ifdef POLL_SCQ_PERIODICALLY
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if(i % PPOLLS == PPOLLS - 1) {
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int nfound = 0;
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k = 0;
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while(1) {
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int result;
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struct ibv_wc cqe[PPOLLS * NCHAIN];
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result = ibv_poll_cq(qpinfo.scq, PPOLLS * NCHAIN, &cqe[0]);
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if(result < 0) { printf("ibv_poll_cq"); goto fn_fail; }
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if(result > 0) {
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for(j = 0; j < result; j++) {
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if(cqe[j].status != IBV_WC_SUCCESS) { printf("cqe status\n"); goto fn_fail; }
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}
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nfound += result;
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debug_couter3 += result;
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if(nfound == PPOLLS * NCHAIN) { break; }
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}
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k++;
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}
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}
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#endif
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//printf("%d ", i);
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}
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tsce = rdtsc(); printf("send,%.0f\n", (tsce-tscs)/(double)(NTRIAL-NSKIPS));
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#ifndef POLL_SCQ_PERIODICALLY
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int nfound = 0;
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k = 0;
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while(1) {
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int result;
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struct ibv_wc cqe[NTRIAL * NCHAIN];
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result = ibv_poll_cq(qpinfo.scq, NTRIAL * NCHAIN, &cqe[0]);
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if(result < 0) { printf("ibv_poll_cq"); goto fn_fail; }
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if(result > 0) {
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for(j = 0; j < result; j++) {
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if(cqe[j].status != IBV_WC_SUCCESS) { printf("cqe status\n"); goto fn_fail; }
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}
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nfound += result;
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debug_counter3 += result;
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if(nfound == NTRIAL * NCHAIN) { break; }
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}
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k++;
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}
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#endif
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dprintf("debug_counter=%d\n", debug_counter3);
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} else { // receiver side
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int tlb_pref_ahd;
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#define TLB_PREF_AMT_AHEAD 20//20
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#define PREF_AHEAD 10
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#if 0
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for(j = 0; j < PREF_AHEAD; j++) {
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__asm__ __volatile__
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("movq %0, %%rsi;"
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"prefetchnta 0x00(%%rsi);"
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"prefetchnta 0x40(%%rsi);"
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"prefetchnta 0x80(%%rsi);"
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"prefetchnta 0xc0(%%rsi);"
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: : "r"(res.rdma_mr.buf + IBCOM_INLINE_DATA * NCHAIN * (j)) : "%rsi");
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}
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#endif
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#if 1
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for(tlb_pref_ahd = 0; tlb_pref_ahd < 4096*TLB_PREF_AMT_AHEAD; tlb_pref_ahd += 4096) {
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__asm__ __volatile__
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("movq %0, %%rsi;"
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"movq 4096(%%rsi), %%rax;"
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: : "r"(rdma_buf + tlb_pref_ahd) : "%rsi", "%rax");
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}
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#endif
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for(i = 0; i < NTRIAL; i++) {
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if(i == NSKIPR) { tscs = rdtsc(); }
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volatile uint32_t* magic = (volatile uint32_t*)(res.rdma_mr.buf + IBCOM_INLINE_DATA * NCHAIN * i + IBCOM_INLINE_DATA * NCHAIN - sizeof(uint32_t));
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k = 4096*5;
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void* tlb_pref_ptr = (void*)magic + 4096*TLB_PREF_AMT_AHEAD;
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#if 1
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tlb_pref_ahd = (uint64_t)magic + 4096*TLB_PREF_AMT_AHEAD - (uint64_t)rdma_buf;
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#else
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tlb_pref_ahd = 4096*TLB_PREF_AMT_AHEAD;
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#endif
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//tlb_pref_ahd = tlb_pref_ahd % (IBCOM_INLINE_DATA * NCHAIN * NTRIAL);
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while(*magic != IBCOM_MAGIC) {
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#if 1
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__asm__ __volatile__
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("movq %0, %%rsi;"
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"prefetchnta 0x00(%%rsi);"
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"prefetchnta 0x40(%%rsi);"
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"prefetchnta 0x80(%%rsi);"
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"prefetchnta 0xc0(%%rsi);"
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: : "r"(res.rdma_mr.buf + IBCOM_INLINE_DATA * NCHAIN * (i+1)) : "%rsi");
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#endif
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#if 1
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__asm__ __volatile__
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("movq %0, %%rsi;"
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"prefetchnta 0x00(%%rsi);"
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"prefetchnta 0x40(%%rsi);"
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"prefetchnta 0x80(%%rsi);"
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"prefetchnta 0xc0(%%rsi);"
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: : "r"(res.rdma_mr.buf + IBCOM_INLINE_DATA * NCHAIN * (i+2)) : "%rsi");
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#endif
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#if 0
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__asm__ __volatile__
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("movq %0, %%rsi;"
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"prefetchnta 0x00(%%rsi);"
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"prefetchnta 0x40(%%rsi);"
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"prefetchnta 0x80(%%rsi);"
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"prefetchnta 0xc0(%%rsi);"
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: : "r"(res.rdma_mr.buf + IBCOM_INLINE_DATA * NCHAIN * (i+PREF_AHEAD)) : "%rsi");
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#endif
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#if 0
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__asm__ __volatile__
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("movq %0, %%rsi;"
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"prefetchnta 0x00(%%rsi);"
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"prefetchnta 0x40(%%rsi);"
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"prefetchnta 0x80(%%rsi);"
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"prefetchnta 0xc0(%%rsi);"
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: : "r"(res.rdma_mr.buf + IBCOM_INLINE_DATA * NCHAIN * (i+32)) : "%rsi");
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#endif
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#if 0
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__asm__ __volatile__
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("movq %0, %%rsi;"
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"movq 0(%%rsi), %%rax;"
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: : "r"(magic+k) : "%rsi", "%rax");
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//k += 4096;
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#endif
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#if 0
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__asm__ __volatile__
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("movq %0, %%rsi;"
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"movq 0(%%rsi), %%rax;"
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: : "r"(tlb_pref_ptr) : "%rsi", "%rax");
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#endif
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#if 1
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__asm__ __volatile__
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("movq %0, %%rsi;"
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"movq 0(%%rsi), %%rax;"
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: : "r"(rdma_buf + tlb_pref_ahd) : "%rsi", "%rax");
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tlb_pref_ahd = (tlb_pref_ahd + 4096*20) % (IBCOM_INLINE_DATA * NCHAIN * NTRIAL);
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#endif
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}
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//print_mem((addr_t)res.rdma_mr.buf + IBCOM_RDMABUF_SZSEG * i * 2, 32);
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}
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tsce = rdtsc(); printf("recv,%.0f\n", (tsce-tscs)/(double)(NTRIAL-NSKIPR));
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}
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fn_fail:
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main_exit:
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#ifdef SHM
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shmctl(shmid, IPC_RMID, NULL);
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#endif
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#if 0
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if (resource_destroy(&config, &res)) {
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dprintf("resource destroy failed\n");
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}
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if(loc_mr_list) { free(loc_mr_list); }
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#endif
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return rc;
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}
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