Re: [Qemu-block] [PATCH v6 5/8] qcow2: Increase the default upper limit

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Re: [Qemu-block] [PATCH v6 5/8] qcow2: Increase the default upper limit

From:	Leonid Bloch
Subject:	Re: [Qemu-block] [PATCH v6 5/8] qcow2: Increase the default upper limit on the L2 cache size
Date:	Fri, 10 Aug 2018 08:33:29 +0300
User-agent:	Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.0

--- a/block/qcow2.h
+++ b/block/qcow2.h
@@ -73,7 +73,7 @@
  /* Must be at least 4 to cover all cases of refcount table growth */
  #define MIN_REFCOUNT_CACHE_SIZE 4 /* clusters */
-#define DEFAULT_L2_CACHE_MAX_SIZE 1048576  /* bytes */
+#define DEFAULT_L2_CACHE_MAX_SIZE 0x2000000U /* bytes */


I'd spell this as '(64 * MiB)' with the help of "qemu/units.h".


You mean '(32 * MiB)', right? Good idea! Done.

Leonid.

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[Qemu-block] [PATCH v6 0/8] qcow2: Take the image size into account when allocating the L2 cache, Leonid Bloch, 2018/08/09
- [Qemu-block] [PATCH v6 1/8] qcow2: Options' documentation fixes, Leonid Bloch, 2018/08/09
- [Qemu-block] [PATCH v6 2/8] qcow2: Cosmetic changes, Leonid Bloch, 2018/08/09
- [Qemu-block] [PATCH v6 3/8] qcow2: Avoid duplication in setting the refcount cache size, Leonid Bloch, 2018/08/09
- [Qemu-block] [PATCH v6 6/8] qcow2: Resize the cache upon image resizing, Leonid Bloch, 2018/08/09
- [Qemu-block] [PATCH v6 5/8] qcow2: Increase the default upper limit on the L2 cache size, Leonid Bloch, 2018/08/09
  - Re: [Qemu-block] [PATCH v6 5/8] qcow2: Increase the default upper limit on the L2 cache size, Eric Blake, 2018/08/09
    - Re: [Qemu-block] [PATCH v6 5/8] qcow2: Increase the default upper limit on the L2 cache size, Leonid Bloch <=
- [Qemu-block] [PATCH v6 4/8] qcow2: Assign the L2 cache relatively to the image size, Leonid Bloch, 2018/08/09
- [Qemu-block] [PATCH v6 8/8] qcow2: Explicit number replaced by a constant, Leonid Bloch, 2018/08/09
- [Qemu-block] [PATCH v6 7/8] qcow2: Set the default cache-clean-interval to 10 minutes, Leonid Bloch, 2018/08/09

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