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authorJan Nieuwenhuizen <janneke@gnu.org>2018-10-21 23:18:19 +0200
committerJan Nieuwenhuizen <janneke@gnu.org>2018-10-21 23:19:35 +0200
commitcf7658f7cb5de0e17f4801faa84c378a4b40033e (patch)
tree646fa120d67bb41868a543461700e62aa170b2c0 /gnu/system/vm.scm
parent09c5a5680a06011f985a84aa26fb890b3be453bd (diff)
parentffddb42d6c510456997ee6de1c1b8026c9ce6d14 (diff)
Merge branch 'core-updates' into core-updates-next
Diffstat (limited to 'gnu/system/vm.scm')
-rw-r--r--gnu/system/vm.scm20
1 files changed, 16 insertions, 4 deletions
diff --git a/gnu/system/vm.scm b/gnu/system/vm.scm
index 91e117b9f3..a1b595d45d 100644
--- a/gnu/system/vm.scm
+++ b/gnu/system/vm.scm
@@ -99,21 +99,28 @@
(device "store")
(type "9p")
(needed-for-boot? #t)
- (options "trans=virtio")
+ (flags '(read-only))
+ (options "trans=virtio,cache=loose")
(check? #f))
+
+ ;; The 9p documentation says that cache=loose is "intended for
+ ;; exclusive, read-only mounts", without additional details. In
+ ;; practice it seems to work well for these, and it's much faster than
+ ;; the default cache=none, especially when copying and registering
+ ;; store items.
(file-system
(mount-point "/xchg")
(device "xchg")
(type "9p")
(needed-for-boot? #t)
- (options "trans=virtio")
+ (options "trans=virtio,cache=loose")
(check? #f))
(file-system
(mount-point "/tmp")
(device "tmp")
(type "9p")
(needed-for-boot? #t)
- (options "trans=virtio")
+ (options "trans=virtio,cache=loose")
(check? #f))))
(define not-config?
@@ -390,7 +397,12 @@ the image."
#:closures graphs
#:copy-closures? #$copy-inputs?
#:register-closures? #$register-closures?
- #:system-directory #$os-drv))
+ #:system-directory #$os-drv
+
+ ;; Disable deduplication to speed things up,
+ ;; and because it doesn't help much for a
+ ;; single system generation.
+ #:deduplicate? #f))
(root-size #$(if (eq? 'guess disk-image-size)
#~(max
;; Minimum 20 MiB root size