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a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=RiY8JC8wmUfIiWampqiVwKQCZ6rPAShtEpaPbYRzqTo=; b=VIVMHMdmAaPa/nrxYsy7g6ydA+48AZCpEahWYBvKxBhzcHbLIs3GkvsEAZk+PW/FsY 2J81wzdNVzkZJlWj66cjc7NApTfhq/TkXLBPI7A8Hal+QgvKMdsMyN5tx+okfaFuIRbf HJehM71U1aAIW9KPVhL4LyFa5bSLNEm4CPq7YiwTV6lQPvBWzbNROMx4RKcpk1ctQJwN BgvNb3HEOypw8C2wl0G7ja6YSjUlkYFkppUmcLpgfb/SmvsWRV79UL2VZ5oHU1FtT8pA /hWq5fKUelz35lICitXvytHS0N2/3da0MRqMhCmwelPBqD+cSojVK95E7iArNWcMGgMj lbVA== X-Gm-Message-State: AGi0PubPYO6ClaUGpXdaeqbTIDDRr8P/sf19y5GnN+pXsGa4K/D4tIJ7 d7OIpmlbR6sT/8EzNWC1mXZrT9ckZ63yjWk5Xx13c7/d X-Google-Smtp-Source: APiQypIE2IbN0raRDQyXkBvasi2we/xWmnJyjfz1s3UHk9ornOpmDQRScAVPuhl0PMvJbudhQTNJLuUNa5xz+SxRlZ8= X-Received: by 2002:a2e:870d:: with SMTP id m13mr8320896lji.64.1587805961461; Sat, 25 Apr 2020 02:12:41 -0700 (PDT) MIME-Version: 1.0 From: Ole-Hjalmar Kristensen Date: Sat, 25 Apr 2020 11:12:30 +0200 Message-ID: Subject: Excessive index read/write in venti To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> Content-Type: multipart/alternative; boundary="0000000000004e242305a419e2d8" Topicbox-Policy-Reasoning: allow: sender is a member Topicbox-Message-UUID: eeece628-86d4-11ea-afcc-c63502094be4 --0000000000004e242305a419e2d8 Content-Type: text/plain; charset="UTF-8" I run a venti from plan9port under Linux at home. Sometimes, typically after a massive insert, I notice that venti reads and writes about 5 Mb/s on the index disk continuously. This continues long after the insert has finished, and there is a marked performance drop. I have never had the patience to wait more than 24 hours, but it seems to never stop. If I kill the venti and restart it, the problem goes away until I do massive inserts again. After the initial indexing, there is no index activity, and everything is back to normal. Has anyone observed similar behavior? Known bugs? Ole-Hj. --0000000000004e242305a419e2d8 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
I run a venti from plan9port under Linux at home. Sometime= s, typically after a massive insert, I notice that venti reads and writes a= bout 5 Mb/s on the index disk continuously. This continues long after the i= nsert has finished, and there is a marked=C2=A0performance drop. I have nev= er had the patience to wait more than 24 hours, but it seems to never stop.= If I kill the venti and restart it, the problem goes away until I do massi= ve=C2=A0inserts again. After the initial indexing, there is no index activi= ty, and everything is back to normal. Has anyone observed similar behavior?= Known bugs?

Ole-Hj.
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