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| author | Alexander Motin <alexander.motin@TrueNAS.com> | 2025-11-11 00:16:22 +0000 |
|---|---|---|
| committer | Brian Behlendorf <behlendorf1@llnl.gov> | 2025-11-12 21:07:09 +0000 |
| commit | 41878d57eaf3091c8405e80abb4b37ffe1746b39 (patch) | |
| tree | c39af2fd789a2ee00cc3425bdd67c47b3048c679 /cmd | |
| parent | 002bc3da6a4b82bef90763478831f82fb509dc59 (diff) | |
Add BRT support to zpool prefetch command
Implement BRT (Block Reference Table) prefetch functionality similar
to existing DDT prefetch. This allows preloading BRT metadata into
ARC to improve performance for block cloning operations and frees
of earlier cloned blocks.
Make -t parameter optional. When omitted, prefetch all supported
metadata types (both DDT and BRT now).
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Alexander Motin <alexander.motin@TrueNAS.com>
Closes #17890
Diffstat (limited to 'cmd')
| -rw-r--r-- | cmd/zpool/zpool_main.c | 34 |
1 files changed, 20 insertions, 14 deletions
diff --git a/cmd/zpool/zpool_main.c b/cmd/zpool/zpool_main.c index 1feec55c0e8b..18952775bcfe 100644 --- a/cmd/zpool/zpool_main.c +++ b/cmd/zpool/zpool_main.c @@ -494,8 +494,7 @@ get_usage(zpool_help_t idx) "[--json-int, --json-pool-key-guid]] ...\n" "\t [-T d|u] [pool] [interval [count]]\n")); case HELP_PREFETCH: - return (gettext("\tprefetch -t <type> [<type opts>] <pool>\n" - "\t -t ddt <pool>\n")); + return (gettext("\tprefetch [-t <type>] <pool>\n")); case HELP_OFFLINE: return (gettext("\toffline [--power]|[[-f][-t]] <pool> " "<device> ...\n")); @@ -4200,7 +4199,7 @@ zpool_do_checkpoint(int argc, char **argv) #define CHECKPOINT_OPT 1024 /* - * zpool prefetch <type> [<type opts>] <pool> + * zpool prefetch [-t <type>] <pool> * * Prefetchs a particular type of data in the specified pool. */ @@ -4245,20 +4244,27 @@ zpool_do_prefetch(int argc, char **argv) poolname = argv[0]; - argc--; - argv++; - - if (strcmp(typestr, "ddt") == 0) { - type = ZPOOL_PREFETCH_DDT; - } else { - (void) fprintf(stderr, gettext("unsupported prefetch type\n")); - usage(B_FALSE); - } - if ((zhp = zpool_open(g_zfs, poolname)) == NULL) return (1); - err = zpool_prefetch(zhp, type); + if (typestr == NULL) { + /* Prefetch all types */ + err = zpool_prefetch(zhp, ZPOOL_PREFETCH_DDT); + if (err == 0) + err = zpool_prefetch(zhp, ZPOOL_PREFETCH_BRT); + } else { + if (strcmp(typestr, "ddt") == 0) { + type = ZPOOL_PREFETCH_DDT; + } else if (strcmp(typestr, "brt") == 0) { + type = ZPOOL_PREFETCH_BRT; + } else { + (void) fprintf(stderr, + gettext("unsupported prefetch type\n")); + zpool_close(zhp); + usage(B_FALSE); + } + err = zpool_prefetch(zhp, type); + } zpool_close(zhp); |