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From: Stefan Priebe - Profihost AG <s.priebe-2Lf/h1ldwEHR5kwTpVNS9A@public.gmane.org>
To: "linux-bcache-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
	<linux-bcache-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Cc: Kent Overstreet <kmo-PEzghdH756F8UrSeD/g0lQ@public.gmane.org>
Subject: can't get bache's sequential_cutoff to work
Date: Tue, 23 Jul 2013 16:16:54 +0200	[thread overview]
Message-ID: <51EE9056.7030903@profihost.ag> (raw)

Hi,

maybe i missed something or maybe i'm just wrong.


# cat /sys/block/bcache2/bcache/sequential_cutoff
512k

# cat /sys/block/bcache2/bcache/stats_five_minute/bypassed
64.3M

# dd if=/dev/zero of=/mnt/bcache2/ttt bs=4M count=1000 oflag=direct
1000+0 records in
1000+0 records out
4194304000 bytes (4,2 GB) copied, 11,0348 s, 380 MB/s

# cat /sys/block/bcache2/bcache/stats_five_minute/bypassed
69.3M

I also see only IOP/s an writes go to the SSD but not to the disk
behind. What's wrong?

Greets,
Stefan

             reply	other threads:[~2013-07-23 14:16 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-07-23 14:16 Stefan Priebe - Profihost AG [this message]
     [not found] ` <CA+res+Ti1-tGANkb9wRAgF4sAcUqEv9RfGjDvbdX3bbxS=XK8g@mail.gmail.com>
     [not found]   ` <CA+res+Ti1-tGANkb9wRAgF4sAcUqEv9RfGjDvbdX3bbxS=XK8g-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-07-23 19:41     ` can't get bache's sequential_cutoff to work Stefan Priebe
     [not found]       ` <51EEDC73.5020101-2Lf/h1ldwEHR5kwTpVNS9A@public.gmane.org>
2013-07-23 20:31         ` Stefan Priebe
     [not found]           ` <51EEE805.7090200-2Lf/h1ldwEHR5kwTpVNS9A@public.gmane.org>
2013-07-23 20:38             ` Stefan Priebe
     [not found]               ` <51EEE9D9.7090207-2Lf/h1ldwEHR5kwTpVNS9A@public.gmane.org>
2013-07-25  0:14                 ` Kent Overstreet
2013-07-25  7:17                   ` Stefan Priebe - Profihost AG

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