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4824e5917f
Add some write-side stats to count buffered writes, buffered writethrough, and writepages calls. Whilst we're at it, clean up the naming on some of the existing stats counters and organise the output into two sets. Signed-off-by: David Howells <dhowells@redhat.com> Reviewed-by: Jeff Layton <jlayton@kernel.org> cc: netfs@lists.linux.dev cc: linux-fsdevel@vger.kernel.org
84 lines
2.8 KiB
C
84 lines
2.8 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/* Netfs support statistics
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*
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* Copyright (C) 2021 Red Hat, Inc. All Rights Reserved.
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* Written by David Howells (dhowells@redhat.com)
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*/
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#include <linux/export.h>
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#include <linux/seq_file.h>
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#include "internal.h"
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atomic_t netfs_n_rh_dio_read;
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atomic_t netfs_n_rh_readahead;
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atomic_t netfs_n_rh_read_folio;
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atomic_t netfs_n_rh_rreq;
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atomic_t netfs_n_rh_sreq;
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atomic_t netfs_n_rh_download;
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atomic_t netfs_n_rh_download_done;
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atomic_t netfs_n_rh_download_failed;
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atomic_t netfs_n_rh_download_instead;
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atomic_t netfs_n_rh_read;
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atomic_t netfs_n_rh_read_done;
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atomic_t netfs_n_rh_read_failed;
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atomic_t netfs_n_rh_zero;
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atomic_t netfs_n_rh_short_read;
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atomic_t netfs_n_rh_write;
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atomic_t netfs_n_rh_write_begin;
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atomic_t netfs_n_rh_write_done;
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atomic_t netfs_n_rh_write_failed;
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atomic_t netfs_n_rh_write_zskip;
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atomic_t netfs_n_wh_buffered_write;
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atomic_t netfs_n_wh_writethrough;
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atomic_t netfs_n_wh_dio_write;
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atomic_t netfs_n_wh_writepages;
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atomic_t netfs_n_wh_wstream_conflict;
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atomic_t netfs_n_wh_upload;
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atomic_t netfs_n_wh_upload_done;
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atomic_t netfs_n_wh_upload_failed;
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atomic_t netfs_n_wh_write;
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atomic_t netfs_n_wh_write_done;
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atomic_t netfs_n_wh_write_failed;
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int netfs_stats_show(struct seq_file *m, void *v)
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{
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seq_printf(m, "Netfs : DR=%u RA=%u RF=%u WB=%u WBZ=%u\n",
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atomic_read(&netfs_n_rh_dio_read),
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atomic_read(&netfs_n_rh_readahead),
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atomic_read(&netfs_n_rh_read_folio),
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atomic_read(&netfs_n_rh_write_begin),
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atomic_read(&netfs_n_rh_write_zskip));
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seq_printf(m, "Netfs : BW=%u WT=%u DW=%u WP=%u\n",
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atomic_read(&netfs_n_wh_buffered_write),
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atomic_read(&netfs_n_wh_writethrough),
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atomic_read(&netfs_n_wh_dio_write),
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atomic_read(&netfs_n_wh_writepages));
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seq_printf(m, "Netfs : ZR=%u sh=%u sk=%u\n",
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atomic_read(&netfs_n_rh_zero),
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atomic_read(&netfs_n_rh_short_read),
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atomic_read(&netfs_n_rh_write_zskip));
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seq_printf(m, "Netfs : DL=%u ds=%u df=%u di=%u\n",
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atomic_read(&netfs_n_rh_download),
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atomic_read(&netfs_n_rh_download_done),
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atomic_read(&netfs_n_rh_download_failed),
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atomic_read(&netfs_n_rh_download_instead));
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seq_printf(m, "Netfs : RD=%u rs=%u rf=%u\n",
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atomic_read(&netfs_n_rh_read),
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atomic_read(&netfs_n_rh_read_done),
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atomic_read(&netfs_n_rh_read_failed));
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seq_printf(m, "Netfs : UL=%u us=%u uf=%u\n",
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atomic_read(&netfs_n_wh_upload),
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atomic_read(&netfs_n_wh_upload_done),
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atomic_read(&netfs_n_wh_upload_failed));
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seq_printf(m, "Netfs : WR=%u ws=%u wf=%u\n",
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atomic_read(&netfs_n_wh_write),
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atomic_read(&netfs_n_wh_write_done),
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atomic_read(&netfs_n_wh_write_failed));
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seq_printf(m, "Netfs : rr=%u sr=%u wsc=%u\n",
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atomic_read(&netfs_n_rh_rreq),
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atomic_read(&netfs_n_rh_sreq),
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atomic_read(&netfs_n_wh_wstream_conflict));
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return fscache_stats_show(m);
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}
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EXPORT_SYMBOL(netfs_stats_show);
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