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subvol-threads: increase resource and thread limits

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With kernel 4.14 there is no sign of the previous LOGICAL_INO performance
problems, so there seems to be no need to throttle threads using this
ioctl.

Increase the FD cache size limits and scan thread count.  Let the kernel
figure out scheduling.

Signed-off-by: Zygo Blaxell <bees@furryterror.org>
This commit is contained in:
Zygo Blaxell
2018-01-15 23:07:12 -05:00
parent 42a6053229
commit 8d3a27bf85
3 changed files with 31 additions and 4 deletions
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15
src/bees.cc
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@ -19,6 +19,10 @@
#include <linux/fs.h>
#include <sys/ioctl.h>
// setrlimit
#include <sys/time.h>
#include <sys/resource.h>
#include <getopt.h>
using namespace crucible;
@ -647,6 +651,17 @@ bees_main(int argc, char *argv[])
BEESLOG("using relative path " << relative_path() << "\n");
}
BEESLOG("setting rlimit NOFILE to " << BEES_OPEN_FILE_LIMIT);
struct rlimit lim = {
.rlim_cur = BEES_OPEN_FILE_LIMIT,
.rlim_max = BEES_OPEN_FILE_LIMIT,
};
int rv = setrlimit(RLIMIT_NOFILE, &lim);
if (rv) {
BEESLOG("setrlimit(RLIMIT_NOFILE, { " << lim.rlim_cur << " }): " << strerror(errno));
};
// Create a context and start crawlers
bool did_subscription = false;
while (optind < argc) {