ref: 88c8be97d8877f0eb8d884a34f8575f1f1948bfa
dir: /test/fsbench.c/
#include <u.h>
#include <libc.h>
#include <libsec.h>
#include <thread.h>
int mainstacksize = 2*1024*1024;
typedef struct Bench Bench;
enum {
KiB = 1024ULL,
MiB = 1024ULL*KiB,
GiB = 1024ULL*MiB,
Bufsz = IOUNIT,
};
enum {
Bps,
Fps,
};
struct Bench {
char *name;
char *unit;
vlong (*fn)(Bench*);
vlong reps;
int nproc;
int id;
Channel *rc;
vlong i0;
vlong i1;
vlong i2;
char *s0;
char *s1;
};
#define GBIT64(p) ((u32int)(((uchar*)(p))[0]|(((uchar*)(p))[1]<<8)|\
(((uchar*)(p))[2]<<16)|(((uchar*)(p))[3]<<24)) |\
((uvlong)(((uchar*)(p))[4]|(((uchar*)(p))[5]<<8)|\
(((uchar*)(p))[6]<<16)|(((uchar*)(p))[7]<<24)) << 32))
vlong
vrand(vlong n)
{
uchar buf[8];
vlong slop, v;
slop = 0x7fffffffffffffffULL % n;
do{
prng(buf, 8);
v = GBIT64(buf);
}while(v <= slop);
return v % n;
}
vlong
wrfile_la(Bench *b)
{
char buf[Bufsz];
vlong i;
int fd;
if((fd = create(b->s0, OWRITE, 0666)) == -1)
sysfatal("open: %r");
for(i = 0; i < b->i0; i += Bufsz)
if(write(fd, buf, Bufsz) != Bufsz)
sysfatal("write: %r");
close(fd);
return b->i0/MiB;
}
vlong
wrfile_ra(Bench *b)
{
char buf[Bufsz];
vlong i, n, j, t, *off;
int fd;
n = b->i0/Bufsz;
if((fd = create(b->s0, OWRITE, 0666)) == -1)
sysfatal("open: %r");
if((off = malloc(n*sizeof(vlong))) == nil)
sysfatal("malloc: %r");
for(i = 0; i < n; i++)
off[i] = i*Bufsz;
for (i = n - 1; i > 0; i--) {
j = vrand(i+1);
t = off[i];
off[i] = off[j];
off[j] = t;
}
for(i = 0; i < n; i++)
if(pwrite(fd, buf, Bufsz, off[i]) != Bufsz)
sysfatal("write: %r");
close(fd);
free(off);
return b->i0/MiB;
}
vlong
wrfile_rr(Bench *b)
{
char buf[Bufsz];
vlong i, n, j, t, *off;
int fd;
n = b->i0/Bufsz;
if((fd = create(b->s0, OWRITE, 0666)) == -1)
sysfatal("open: %r");
if((off = malloc(n*sizeof(vlong))) == nil)
sysfatal("malloc: %r");
for(i = 0; i < n; i++)
off[i] = i*Bufsz;
for (i = n - 1; i > 0; i--) {
j = vrand(i+1);
t = off[i];
off[i] = off[j];
off[j] = t;
}
for(i = 0; i < n; i++)
if(pwrite(fd, buf, Bufsz, off[i] + vrand(100)) != Bufsz)
sysfatal("write: %r");
close(fd);
free(off);
return b->i0/MiB;
}
vlong
rdfile_la(Bench *b)
{
char path[128], buf[Bufsz];
vlong i, rep;
int fd;
if(b->id == -1)
snprint(path, sizeof(path), "%s", b->s0);
else if(b->i1 != 0)
snprint(path, sizeof(path), "%s.%lld", b->s0, b->id % b->i1);
else
snprint(path, sizeof(path), "%s.%d", b->s0, b->id);
if((fd = open(path, OREAD)) == -1)
sysfatal("open: %r");
for(rep = 0; rep < b->reps; rep++){
seek(fd, 0, 0);
for(i = 0; i < b->i0; i += Bufsz)
if(read(fd, buf, Bufsz) != Bufsz)
sysfatal("write: %r");
}
close(fd);
return b->reps*(b->i0/MiB);
}
vlong
rdfile_ra(Bench *b)
{
char path[128], buf[Bufsz];
vlong i, rep;
uvlong off;
int fd;
if(b->id == -1)
snprint(path, sizeof(path), "%s", b->s0);
else if(b->i1 != 0)
snprint(path, sizeof(path), "%s.%lld", b->s0, b->id % b->i1);
else
snprint(path, sizeof(path), "%s.%d", b->s0, b->id);
if((fd = open(path, OREAD)) == -1)
sysfatal("open: %r");
for(rep = 0; rep < b->reps; rep++){
seek(fd, 0, 0);
for(i = 0; i < b->i0; i += Bufsz){
off = vrand(b->i0-Bufsz) & ~((vlong)Bufsz-1);
if(pread(fd, buf, Bufsz, off) != Bufsz)
sysfatal("write: %r");
}
}
close(fd);
return b->reps*(b->i0/MiB);
}
vlong
rwfile_lala(Bench *b)
{
char buf[64];
Bench bb;
bb = *b;
if(b->id >= b->i1)
return rdfile_la(&bb);
else{
snprint(buf, sizeof(buf), "%s%d.w%d", b->s0, getpid(), b->id);
bb.s0 = buf;
return wrfile_la(&bb);
}
}
vlong
rdfile_rr(Bench *b)
{
char path[128], buf[Bufsz];
vlong i, rep;
uvlong off;
int fd;
if(b->id == -1)
snprint(path, sizeof(path), "%s", b->s0);
else if(b->i1 != 0)
snprint(path, sizeof(path), "%s.%lld", b->s0, b->id % b->i1);
else
snprint(path, sizeof(path), "%s.%d", b->s0, b->id);
if((fd = open(path, OREAD)) == -1)
sysfatal("open: %r");
for(rep = 0; rep < b->reps; rep++){
for(i = 0; i < b->i0; i += Bufsz){
off = vrand(b->i0-Bufsz);
if(pread(fd, buf, Bufsz, off) != Bufsz)
sysfatal("read: %r");
}
}
close(fd);
return b->reps*(b->i0/MiB);
}
vlong
createflat(Bench *b)
{
char buf[Bufsz];
int i, fd;
for(i = 0; i < b->i0; i++){
snprint(buf, sizeof(buf), "%s%d", b->s0, i);
if((fd = create(buf, OWRITE, 0666)) == -1)
sysfatal("create: %r");
if(b->i1 != 0)
write(fd, buf, b->i1);
close(fd);
}
return b->i0;
}
int
createlevel(int n, int d)
{
char buf[Bufsz];
int i, s, fd;
s = 0;
for(i = 0; i < n; i++){
snprint(buf, sizeof(buf), "%d", i);
if(d > 0){
if((fd = create(buf, OWRITE, 0777|DMDIR)) == -1)
sysfatal("create: %r");
if(chdir(buf) == -1)
sysfatal("chdir %s: %r", buf);
s += createlevel(n, d-1);
chdir("..");
}else{
if((fd = create(buf, OWRITE, 0666)) == -1)
sysfatal("create: %r");
s++;
}
close(fd);
}
return s;
}
vlong
createhier(Bench *b)
{
return createlevel(b->i0, b->i1);
}
vlong
listfiles(Bench *b)
{
char buf[Bufsz];
int i, r, fd;
for(i = 0; i < b->reps; i++){
if((fd = open(".", OREAD)) == -1)
sysfatal("open .: %r");
while(1){
if((r = read(fd, buf, sizeof(buf))) == -1)
sysfatal("read: %r");
if(r == 0)
break;
}
close(fd);
}
return b->reps*b->i0;
}
vlong
randopen(Bench *b)
{
char buf[Bufsz];
int i, fd;
for(i = 0; i < b->reps; i++){
snprint(buf, sizeof(buf), "%s%lld", b->s0, vrand(b->i0));
if((fd = open(buf, OREAD)) == -1)
sysfatal("open: %r");
if(b->i0)
if(read(fd, buf, sizeof(buf)) == -1)
sysfatal("read: %r");
close(fd);
}
return b->reps;
}
void
launch(void *p)
{
Bench *b;
vlong r;
b = p;
r = b->fn(b);
send(b->rc, &r);
}
vlong
runpar(Bench *b)
{
vlong r, sum;
Bench *sub;
int i;
sum = 0;
b->rc = chancreate(sizeof(vlong), b->nproc);
if((sub = calloc(b->nproc, sizeof(Bench))) == nil)
sysfatal("malloc: %r");
for(i = 0; i < b->nproc; i++){
sub[i] = *b;
sub[i].id = i;
proccreate(launch, &sub[i], mainstacksize);
}
for(i = 0; i < b->nproc; i++){
recv(b->rc, &r);
sum += r;
}
free(sub);
return sum;
}
void
runbench(Bench *b, int nb)
{
char *unit[] = {"ns", "us", "ms", "s"};
double oc, dt;
vlong t0, t1;
int i, j;
for(i = 0; i < nb; i++){
if(b[i].reps == 0)
b[i].reps = 1;
print("%20s:\t", b[i].name);
t0 = nsec();
if(b[i].nproc <= 1){
b[i].id = -1;
oc = b[i].fn(&b[i]);
}else
oc = runpar(&b[i]);
t1 = nsec();
dt = (t1 - t0);
for(j = 0; j < nelem(unit)-1; j++)
if(dt/100 < 1)
break;
else
dt /= 1000.0;
print("%f%s (%f %s/%s)\n", dt, unit[j], (double)oc/dt, b[i].unit, unit[j]);
}
}
void
threadmain(int argc, char **argv)
{
Bench marks[] = {
/* l => linear, a => aligned, r => random */
{.name="wrcached_la", .i0=128*MiB, .reps=1, .unit="MiB", .fn=wrfile_la, .s0="cached0"},
{.name="wrcached_la", .i0=128*MiB, .reps=1, .unit="MiB", .fn=wrfile_la, .s0="cached0.0"},
{.name="wrcached_la", .i0=128*MiB, .reps=1, .unit="MiB", .fn=wrfile_la, .s0="cached0.1"},
{.name="wrcached_la", .i0=128*MiB, .reps=1, .unit="MiB", .fn=wrfile_la, .s0="cached0.2"},
{.name="wrcached_la", .i0=128*MiB, .reps=1, .unit="MiB", .fn=wrfile_la, .s0="cached0.3"},
{.name="wrcached_la", .i0=128*MiB, .reps=1, .unit="MiB", .fn=wrfile_la, .s0="cached0.4"},
{.name="wrcached_la", .i0=128*MiB, .reps=1, .unit="MiB", .fn=wrfile_la, .s0="cached0.5"},
{.name="wrcached_la", .i0=128*MiB, .reps=1, .unit="MiB", .fn=wrfile_la, .s0="cached0.6"},
{.name="wrcached_la", .i0=128*MiB, .reps=1, .unit="MiB", .fn=wrfile_la, .s0="cached0.7"},
{.name="wrcached_la", .i0=128*MiB, .reps=1, .unit="MiB", .fn=wrfile_la, .s0="cached0.8"},
{.name="wrcached_la", .i0=128*MiB, .reps=1, .unit="MiB", .fn=wrfile_la, .s0="cached0.9"},
{.name="wrcached_la", .i0=128*MiB, .reps=1, .unit="MiB", .fn=wrfile_la, .s0="cached0.10"},
{.name="wrcached_la", .i0=128*MiB, .reps=1, .unit="MiB", .fn=wrfile_la, .s0="cached0.11"},
{.name="wrcached_la", .i0=128*MiB, .reps=1, .unit="MiB", .fn=wrfile_la, .s0="cached0.12"},
{.name="wrcached_la", .i0=128*MiB, .reps=1, .unit="MiB", .fn=wrfile_la, .s0="cached0.13"},
{.name="wrcached_la", .i0=128*MiB, .reps=1, .unit="MiB", .fn=wrfile_la, .s0="cached0.14"},
{.name="wrcached_la", .i0=128*MiB, .reps=1, .unit="MiB", .fn=wrfile_la, .s0="cached0.15"},
{.name="wrcached_la", .i0=128*MiB, .reps=1, .unit="MiB", .fn=wrfile_la, .s0="cached0.16"},
{.name="wrcached_la", .i0=128*MiB, .reps=1, .unit="MiB", .fn=wrfile_la, .s0="cached0.17"},
{.name="wrcached_la", .i0=128*MiB, .reps=1, .unit="MiB", .fn=wrfile_la, .s0="cached0.18"},
{.name="wrcached_la", .i0=128*MiB, .reps=1, .unit="MiB", .fn=wrfile_la, .s0="cached0.19"},
{.name="wrcached_la", .i0=128*MiB, .reps=1, .unit="MiB", .fn=wrfile_la, .s0="cached0.20"},
{.name="wrcached_la", .i0=128*MiB, .reps=1, .unit="MiB", .fn=wrfile_la, .s0="cached0.21"},
{.name="wrcached_la", .i0=128*MiB, .reps=1, .unit="MiB", .fn=wrfile_la, .s0="cached0.22"},
{.name="wrcached_la", .i0=128*MiB, .reps=1, .unit="MiB", .fn=wrfile_la, .s0="cached0.23"},
{.name="wrcached_la", .i0=128*MiB, .reps=1, .unit="MiB", .fn=wrfile_la, .s0="cached0.24"},
{.name="wrcached_la", .i0=128*MiB, .reps=1, .unit="MiB", .fn=wrfile_la, .s0="cached0.25"},
{.name="wrcached_la", .i0=128*MiB, .reps=1, .unit="MiB", .fn=wrfile_la, .s0="cached0.26"},
{.name="wrcached_la", .i0=128*MiB, .reps=1, .unit="MiB", .fn=wrfile_la, .s0="cached0.27"},
{.name="wrcached_la", .i0=128*MiB, .reps=1, .unit="MiB", .fn=wrfile_la, .s0="cached0.28"},
{.name="wrcached_la", .i0=128*MiB, .reps=1, .unit="MiB", .fn=wrfile_la, .s0="cached0.29"},
{.name="wrcached_la", .i0=128*MiB, .reps=1, .unit="MiB", .fn=wrfile_la, .s0="cached0.30"},
{.name="wrcached_la", .i0=128*MiB, .reps=1, .unit="MiB", .fn=wrfile_la, .s0="cached0.31"},
{.name="rdcached_lala", .i0=128*MiB, .reps=2, .unit="MiB", .fn=rdfile_la, .s0="cached0"},
{.name="rdcached_lara", .i0=128*MiB, .reps=2, .unit="MiB", .fn=rdfile_ra, .s0="cached0"},
{.name="rdcached_larr", .i0=128*MiB, .reps=2, .unit="MiB", .fn=rdfile_rr, .s0="cached0"},
{.name="rdcached_lala_2p", .i0=128*MiB, .reps=2, .unit="MiB", .fn=rdfile_la, .s0="cached0", .nproc=2},
{.name="rdcached_lara_2p", .i0=128*MiB, .reps=2, .unit="MiB", .fn=rdfile_ra, .s0="cached0", .nproc=2},
{.name="rdcached_larr_2p", .i0=128*MiB, .reps=2, .unit="MiB", .fn=rdfile_rr, .s0="cached0", .nproc=2},
{.name="rdcached_lala_4p", .i0=128*MiB, .reps=2, .unit="MiB", .fn=rdfile_la, .s0="cached0", .nproc=4},
{.name="rdcached_lara_4p", .i0=128*MiB, .reps=2, .unit="MiB", .fn=rdfile_ra, .s0="cached0", .nproc=4},
{.name="rdcached_larr_4p", .i0=128*MiB, .reps=2, .unit="MiB", .fn=rdfile_rr, .s0="cached0", .nproc=4},
{.name="rdcached_lala_8p", .i0=128*MiB, .reps=2, .unit="MiB", .fn=rdfile_la, .s0="cached0", .nproc=8},
{.name="rdcached_lara_8p", .i0=128*MiB, .reps=2, .unit="MiB", .fn=rdfile_ra, .s0="cached0", .nproc=8},
{.name="rdcached_larr_8p", .i0=128*MiB, .reps=2, .unit="MiB", .fn=rdfile_rr, .s0="cached0", .nproc=8},
{.name="rdcached_lala_12p", .i0=128*MiB, .reps=2, .unit="MiB", .fn=rdfile_la, .s0="cached0", .nproc=12},
{.name="rdcached_lara_12p", .i0=128*MiB, .reps=2, .unit="MiB", .fn=rdfile_ra, .s0="cached0", .nproc=12},
{.name="rdcached_larr_12p", .i0=128*MiB, .reps=2, .unit="MiB", .fn=rdfile_rr, .s0="cached0", .nproc=12},
{.name="rdcached_lala_16p", .i0=128*MiB, .reps=2, .unit="MiB", .fn=rdfile_la, .s0="cached0", .nproc=16},
{.name="rdcached_lara_16p", .i0=128*MiB, .reps=2, .unit="MiB", .fn=rdfile_ra, .s0="cached0", .nproc=16},
{.name="rdcached_larr_16p", .i0=128*MiB, .reps=2, .unit="MiB", .fn=rdfile_rr, .s0="cached0", .nproc=16},
{.name="rdcached_lala_16p", .i0=128*MiB, .reps=2, .unit="MiB", .fn=rdfile_la, .s0="cached0", .nproc=16},
{.name="rdcached_lara_16p", .i0=128*MiB, .reps=2, .unit="MiB", .fn=rdfile_ra, .s0="cached0", .nproc=16},
{.name="rdcached_larr_16p", .i0=128*MiB, .reps=2, .unit="MiB", .fn=rdfile_rr, .s0="cached0", .nproc=16},
{.name="rdcached_lala_16p_1f", .i0=128*MiB, .reps=2, .unit="MiB", .fn=rdfile_la, .s0="cached0", .nproc=16, .i1=1},
{.name="rdcached_lara_16p_8f", .i0=128*MiB, .reps=2, .unit="MiB", .fn=rdfile_ra, .s0="cached0", .nproc=16, .i1=8},
{.name="rdcached_larr_32p_16f", .i0=128*MiB, .reps=2, .unit="MiB", .fn=rdfile_rr, .s0="cached0", .nproc=32, .i1=16},
{.name="rdcached_larr_32p_32f", .i0=128*MiB, .reps=2, .unit="MiB", .fn=rdfile_rr, .s0="cached0", .nproc=32, .i1=32},
{.name="wrcached_ra", .i0=128*MiB, .reps=1, .unit="MiB", .fn=wrfile_ra, .s0="cached1"},
{.name="rdcached_rala", .i0=128*MiB, .reps=10, .unit="MiB", .fn=rdfile_la, .s0="cached1"},
{.name="rdcached_rara", .i0=128*MiB, .reps=10, .unit="MiB", .fn=rdfile_ra, .s0="cached1"},
{.name="rdcached_rarr", .i0=128*MiB, .reps=10, .unit="MiB", .fn=rdfile_rr, .s0="cached1"},
{.name="wrcached_rr", .i0=128*MiB, .reps=1, .unit="MiB", .fn=wrfile_rr, .s0="cached2"},
{.name="rdcached_rrla", .i0=128*MiB, .reps=10, .unit="MiB", .fn=rdfile_la, .s0="cached2"},
{.name="rdcached_rrra", .i0=128*MiB, .reps=10, .unit="MiB", .fn=rdfile_ra, .s0="cached2"},
{.name="rdcached_rrrr", .i0=128*MiB, .reps=10, .unit="MiB", .fn=rdfile_rr, .s0="cached2"},
{.name="rwcached_la_r0_w2_w", .i0=64*MiB, .reps=10, .unit="MiB", .fn=rwfile_lala, .s0="cached0", .nproc=2, .i1=2},
{.name="rwcached_la_r0_w4_w", .i0=64*MiB, .reps=10, .unit="MiB", .fn=rwfile_lala, .s0="cached0", .nproc=4, .i1=4},
{.name="rwcached_la_r1_w1_w", .i0=64*MiB, .reps=10, .unit="MiB", .fn=rwfile_lala, .s0="cached0", .nproc=2, .i1=1},
{.name="rwcached_la_r3_w1_w", .i0=64*MiB, .reps=10, .unit="MiB", .fn=rwfile_lala, .s0="cached0", .nproc=4, .i1=1},
{.name="rwcached_la_r2_w2_w", .i0=64*MiB, .reps=10, .unit="MiB", .fn=rwfile_lala, .s0="cached0", .nproc=4, .i1=2},
{.name="rwcached_la_r6_w2_w", .i0=64*MiB, .reps=10, .unit="MiB", .fn=rwfile_lala, .s0="cached0", .nproc=8, .i1=2},
{.name="rwcached_la_r4_w4_w", .i0=64*MiB, .reps=10, .unit="MiB", .fn=rwfile_lala, .s0="cached0", .nproc=8, .i1=4},
{.name="rwcached_la_r1_w1_r", .i0=64*MiB, .reps=10, .unit="MiB", .fn=rwfile_lala, .s0="cached0", .nproc=2, .i1=1},
{.name="rwcached_la_r2_w1_r", .i0=64*MiB, .reps=10, .unit="MiB", .fn=rwfile_lala, .s0="cached0", .nproc=3, .i1=1},
{.name="rwcached_la_r3_w1_r", .i0=64*MiB, .reps=10, .unit="MiB", .fn=rwfile_lala, .s0="cached0", .nproc=4, .i1=1},
{.name="rwcached_la_r1_w2_r", .i0=64*MiB, .reps=10, .unit="MiB", .fn=rwfile_lala, .s0="cached0", .nproc=4, .i1=2},
{.name="rwcached_la_r1_w2_r", .i0=64*MiB, .reps=10, .unit="MiB", .fn=rwfile_lala, .s0="cached0", .nproc=3, .i1=2},
{.name="rwcached_la_r2_w2_r", .i0=64*MiB, .reps=10, .unit="MiB", .fn=rwfile_lala, .s0="cached0", .nproc=4, .i1=2},
{.name="rwcached_la_r4_w2_r", .i0=64*MiB, .reps=10, .unit="MiB", .fn=rwfile_lala, .s0="cached0", .nproc=4, .i1=2},
{.name="rwcached_la_r6_w2_r", .i0=64*MiB, .reps=10, .unit="MiB", .fn=rwfile_lala, .s0="cached0", .nproc=8, .i1=2},
{.name="rwcached_la_r4_w4_r", .i0=64*MiB, .reps=10, .unit="MiB", .fn=rwfile_lala, .s0="cached0", .nproc=8, .i1=4},
{.name="createflat", .i0=100*1000, .reps=1, .unit="files", .fn=createflat, .s0="cz"},
{.name="write1flat", .i0=100*1000, .reps=1, .unit="files", .fn=createflat, .i1=1, .s0="c1"},
{.name="write100flat", .i0=100*1000, .reps=1, .unit="files", .fn=createflat, .i1=100, .s0="c100"},
{.name="write1027flat", .i0=100*1000, .reps=1, .unit="files", .fn=createflat, .i1=1027, .s0="c1027"},
{.name="listfflat", .i0=100*1000, .reps=10, .unit="files", .fn=listfiles},
{.name="openfflat", .i0=100*1000, .reps=100*1000, .unit="files", .fn=randopen, .s0="cz"},
{.name="read0flat", .i0=100*1000, .reps=100*1000, .unit="files", .fn=randopen, .i1=1, .s0="cz"},
{.name="read1flat", .i0=100*1000, .reps=100*1000, .unit="files", .fn=randopen, .i1=1, .s0="c1"},
{.name="read100flat", .i0=100*1000, .reps=100*1000, .unit="files", .fn=randopen, .i1=1, .s0="c100"},
{.name="read1027flat", .i0=100*1000, .reps=100*1000, .unit="files", .fn=randopen, .i1=1, .s0="c1027"},
// {.name="rwcached_lara", .i0=512*MiB, .reps=10, .unit="MiB", .fn=rwfile_la, .s0="cached0", .i0=1, .i1=3},
// {.name="rwcached_la", .i0=512*MiB, .reps=10, .unit="MiB", .fn=rwfile_la, .s0="cached0", .i0=3, .i1=3},
// {.name="rwcached_la", .i0=512*MiB, .reps=10, .unit="MiB", .fn=rwfile_la, .s0="cached0", .i0=10, .i1=10},
{.name="wrlarge_la", .i0=16*GiB, .reps=1, .unit="MiB", .fn=wrfile_la, .s0="large0"},
{.name="rdlarge_lala", .i0=16*GiB, .reps=1, .unit="MiB", .fn=rdfile_la, .s0="large0"},
{.name="rdlarge_lara", .i0=16*GiB, .reps=1, .unit="MiB", .fn=rdfile_ra, .s0="large0"},
// {.name="rdlarge_larr", .i0=16*GiB, .reps=1, .unit="MiB", .fn=rdfile_rr, .s0="large0"},
{.name="wrlarge_ra", .i0=16*GiB, .reps=1, .unit="MiB", .fn=wrfile_ra, .s0="large1"},
{.name="rdlarge_lara", .i0=16*GiB, .reps=1, .unit="MiB", .fn=rdfile_la, .s0="large1"},
{.name="rdlarge_rara", .i0=16*GiB, .reps=1, .unit="MiB", .fn=rdfile_ra, .s0="large1"},
// {.name="rdlarge_rarr", .i0=16*GiB, .reps=1, .unit="MiB", .fn=rdfile_rr, .s0="large1"},
// {.name="wrlarge_rr", .i0=16*GiB, .reps=1, .unit="MiB", .fn=wrfile_rr, .s0="large2"},
// {.name="rdlarge_larr", .i0=16*GiB, .reps=1, .unit="MiB", .fn=rdfile_la, .s0="large2"},
// {.name="rdlarge_rarr", .i0=16*GiB, .reps=1, .unit="MiB", .fn=rdfile_ra, .s0="large2"},
// {.name="rdlarge_rrrr", .i0=16*GiB, .reps=1, .unit="MiB", .fn=rdfile_rr, .s0="large2"},
// {.name="createheir", .i0=3, .i1=10, .reps=1, .unit="files", .fn=createhier},
// {.name="openheir", .i0=3, .i1=10, .reps=1, .unit="files", .fn=randwalk},
};
ARGBEGIN{
}ARGEND;
if(argc != 1){
fprint(2, "usage: %s wdir\n", argv0);
exits("usage");
}
if(chdir(argv[0]) == -1)
sysfatal("chdir: %r");
runbench(marks, nelem(marks));
exits(nil);
}